diff options
| author | Johnathan Corgan <johnathan@corganlabs.com> | 2013-03-15 09:57:31 -0700 |
|---|---|---|
| committer | Johnathan Corgan <johnathan@corganlabs.com> | 2013-03-15 09:57:31 -0700 |
| commit | e965a5bb209ad46a509ccd21f393667fd69d95f9 (patch) | |
| tree | 40d683ef8f80980f12eac6cfe7f3423c49b45f87 /gr-digital/examples | |
| parent | 2bf9c4cb4b0b426690f353fc1662a13e70c0d5e0 (diff) | |
| parent | 27990ca9e236931e39a830e48f0a1efe13ec085f (diff) | |
Merge branch 'ofdm-master' into ofdm-next
Added fixups for next branch changes
Conflicts:
CMakeLists.txt
gnuradio-core/src/lib/io/gr_message_sink.cc
gnuradio-core/src/lib/io/gr_message_sink.h
gnuradio-core/src/lib/io/gr_message_sink.i
gnuradio-core/src/lib/io/gr_message_source.cc
gnuradio-core/src/lib/io/gr_message_source.h
gnuradio-core/src/lib/io/gr_message_source.i
gr-blocks/CMakeLists.txt
gr-digital/CMakeLists.txt
gr-digital/grc/digital_block_tree.xml
gr-digital/include/digital/CMakeLists.txt
gr-digital/include/digital_ofdm_cyclic_prefixer.h
gr-digital/lib/CMakeLists.txt
gr-digital/lib/digital_ofdm_cyclic_prefixer.cc
gr-digital/lib/ofdm_cyclic_prefixer_impl.h
gr-digital/python/CMakeLists.txt
gr-digital/swig/CMakeLists.txt
gr-digital/swig/digital_swig.i
Diffstat (limited to 'gr-digital/examples')
| -rw-r--r-- | gr-digital/examples/ofdm/ofdm_bugsquatch.py | 22 | ||||
| -rw-r--r-- | gr-digital/examples/ofdm/rx_ofdm.grc | 1092 | ||||
| -rw-r--r-- | gr-digital/examples/ofdm/tx_ofdm.grc | 1143 |
3 files changed, 2257 insertions, 0 deletions
diff --git a/gr-digital/examples/ofdm/ofdm_bugsquatch.py b/gr-digital/examples/ofdm/ofdm_bugsquatch.py new file mode 100644 index 0000000000..3b900fb46b --- /dev/null +++ b/gr-digital/examples/ofdm/ofdm_bugsquatch.py @@ -0,0 +1,22 @@ +#!/usr/bin/env python + +from gnuradio import gr, digital +from gnuradio.digital.utils import tagged_streams +import random + +if __name__ == '__main__': + tb = gr.top_block() + fft_len = 64 + cp_len = 16 + length_tag_name = "length" + src = gr.vector_source_c( + [random.randint(0, 1)*2-1 for i in range(10*fft_len)], True, fft_len, + tagged_streams.make_lengthtags((10,), (0,), length_tag_name)) + cyclic_prefixer = digital.ofdm_cyclic_prefixer( + fft_len, fft_len+cp_len, 0, length_tag_name) + sink = gr.null_sink(gr.sizeof_gr_complex) + checker = digital.tagged_stream_check(gr.sizeof_gr_complex*fft_len, length_tag_name) + checker2 = digital.tagged_stream_check(gr.sizeof_gr_complex*fft_len, length_tag_name) + tb.connect(src, checker, cyclic_prefixer, sink) + tb.run() + diff --git a/gr-digital/examples/ofdm/rx_ofdm.grc b/gr-digital/examples/ofdm/rx_ofdm.grc new file mode 100644 index 0000000000..1541e8dedf --- /dev/null +++ b/gr-digital/examples/ofdm/rx_ofdm.grc @@ -0,0 +1,1092 @@ +<?xml version='1.0' encoding='ASCII'?> +<flow_graph> + <timestamp>Thu Feb 14 15:49:35 2013</timestamp> + <block> + <key>options</key> + <param> + <key>id</key> + <value>rx_ofdm</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>title</key> + <value>OFDM Rx</value> + </param> + <param> + <key>author</key> + <value></value> + </param> + <param> + <key>description</key> + <value>Example of an OFDM receiver</value> + </param> + <param> + <key>window_size</key> + <value>1280, 1024</value> + </param> + <param> + <key>generate_options</key> + <value>wx_gui</value> + </param> + <param> + <key>category</key> + <value>Custom</value> + </param> + <param> + <key>run_options</key> + <value>prompt</value> + </param> + <param> + <key>run</key> + <value>True</value> + </param> + <param> + <key>max_nouts</key> + <value>0</value> + </param> + <param> + <key>realtime_scheduling</key> + <value></value> + </param> + <param> + <key>_coordinate</key> + <value>(0, -1)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>pilot_symbols_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>((100,),)</value> + </param> + <param> + <key>_coordinate</key> + <value>(762, 64)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>pilot_carriers</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>((0,),)</value> + </param> + <param> + <key>_coordinate</key> + <value>(557, 64)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>header_formatter</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>digital.packet_header_ofdm(occupied_carriers, 1, length_tag_name)</value> + </param> + <param> + <key>_coordinate</key> + <value>(876, 64)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>pilot_symbols</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>((100,),)</value> + </param> + <param> + <key>_coordinate</key> + <value>(659, 64)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>occupied_carriers</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>(range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21) + range(22, 27),)</value> + </param> + <param> + <key>_coordinate</key> + <value>(404, 64)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>analog_noise_source_x</key> + <param> + <key>id</key> + <value>analog_noise_source_x_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>type</key> + <value>complex</value> + </param> + <param> + <key>noise_type</key> + <value>analog.GR_GAUSSIAN</value> + </param> + <param> + <key>amp</key> + <value>1</value> + </param> + <param> + <key>seed</key> + <value>0</value> + </param> + <param> + <key>_coordinate</key> + <value>(-1, 185)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>digital_ofdm_sync_sc_cfb</key> + <param> + <key>id</key> + <value>digital_ofdm_sync_sc_cfb_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>fft_len</key> + <value>fft_len</value> + </param> + <param> + <key>cp_len</key> + <value>fft_len/4</value> + </param> + <param> + <key>_coordinate</key> + <value>(368, 178)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>analog_frequency_modulator_fc</key> + <param> + <key>id</key> + <value>analog_frequency_modulator_fc_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>sensitivity</key> + <value>-2.0/fft_len</value> + </param> + <param> + <key>_coordinate</key> + <value>(692, 175)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>blocks_multiply_xx</key> + <param> + <key>id</key> + <value>blocks_multiply_xx_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>type</key> + <value>complex</value> + </param> + <param> + <key>num_inputs</key> + <value>2</value> + </param> + <param> + <key>vlen</key> + <value>1</value> + </param> + <param> + <key>_coordinate</key> + <value>(885, 223)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>blocks_delay</key> + <param> + <key>id</key> + <value>blocks_delay_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>type</key> + <value>complex</value> + </param> + <param> + <key>delay</key> + <value>fft_len+fft_len/4</value> + </param> + <param> + <key>num_ports</key> + <value>1</value> + </param> + <param> + <key>vlen</key> + <value>1</value> + </param> + <param> + <key>_coordinate</key> + <value>(368, 253)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>samp_rate</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>3200000</value> + </param> + <param> + <key>_coordinate</key> + <value>(0, 91)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>import</key> + <param> + <key>id</key> + <value>import_1</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>import</key> + <value>from gnuradio.digital.utils import tagged_streams</value> + </param> + <param> + <key>_coordinate</key> + <value>(163, 0)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>sync_word</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>[0, 0, 0, 0, 0, 0, 0, -1.0, 0, 1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, -1.0, 0, 1.0, 0, 1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, -1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 0, 0, 0, 0, 0]</value> + </param> + <param> + <key>_coordinate</key> + <value>(165, 46)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>header_mod</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>digital.constellation_bpsk()</value> + </param> + <param> + <key>_coordinate</key> + <value>(655, 0)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>payload_mod</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>digital.constellation_qpsk()</value> + </param> + <param> + <key>_coordinate</key> + <value>(813, 0)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>n_sync_symbols</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>1</value> + </param> + <param> + <key>_coordinate</key> + <value>(168, 108)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>blocks_throttle</key> + <param> + <key>id</key> + <value>blocks_throttle_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>type</key> + <value>complex</value> + </param> + <param> + <key>samples_per_second</key> + <value>samp_rate</value> + </param> + <param> + <key>vlen</key> + <value>1</value> + </param> + <param> + <key>_coordinate</key> + <value>(181, 200)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>digital_constellation_decoder_cb</key> + <param> + <key>id</key> + <value>digital_constellation_decoder_cb_0_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>constellation</key> + <value>header_mod.base()</value> + </param> + <param> + <key>_coordinate</key> + <value>(854, 343)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>digital_ofdm_frame_equalizer_vcvc</key> + <param> + <key>id</key> + <value>digital_ofdm_frame_equalizer_vcvc_0_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>fft_len</key> + <value>fft_len</value> + </param> + <param> + <key>equalizer</key> + <value>digital.ofdm_equalizer_simpledfe(fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols).base()</value> + </param> + <param> + <key>len_tag_key</key> + <value>length_tag_name</value> + </param> + <param> + <key>propagate_channel_state</key> + <value>True</value> + </param> + <param> + <key>_coordinate</key> + <value>(421, 320)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>digital_packet_headerparser_b</key> + <param> + <key>id</key> + <value>digital_packet_headerparser_b_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>header_formatter</key> + <value>header_formatter.formatter()</value> + </param> + <param> + <key>_coordinate</key> + <value>(651, 466)</value> + </param> + <param> + <key>_rotation</key> + <value>180</value> + </param> + </block> + <block> + <key>fft_vxx</key> + <param> + <key>id</key> + <value>fft_vxx_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>type</key> + <value>complex</value> + </param> + <param> + <key>fft_size</key> + <value>fft_len</value> + </param> + <param> + <key>forward</key> + <value>True</value> + </param> + <param> + <key>window</key> + <value></value> + </param> + <param> + <key>shift</key> + <value>True</value> + </param> + <param> + <key>nthreads</key> + <value>1</value> + </param> + <param> + <key>_coordinate</key> + <value>(53, 429)</value> + </param> + <param> + <key>_rotation</key> + <value>180</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>fft_len</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>64</value> + </param> + <param> + <key>_coordinate</key> + <value>(301, -1)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>length_tag_name</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>"frame_len"</value> + </param> + <param> + <key>_coordinate</key> + <value>(367, -1)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>digital_constellation_decoder_cb</key> + <param> + <key>id</key> + <value>digital_constellation_decoder_cb_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>constellation</key> + <value>payload_mod.base()</value> + </param> + <param> + <key>_coordinate</key> + <value>(718, 635)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>gr_null_sink</key> + <param> + <key>id</key> + <value>gr_null_sink_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>type</key> + <value>byte</value> + </param> + <param> + <key>vlen</key> + <value>1</value> + </param> + <param> + <key>_coordinate</key> + <value>(938, 638)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>digital_ofdm_frame_equalizer_vcvc</key> + <param> + <key>id</key> + <value>digital_ofdm_frame_equalizer_vcvc_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>fft_len</key> + <value>fft_len</value> + </param> + <param> + <key>equalizer</key> + <value>digital.ofdm_equalizer_simpledfe(fft_len, header_mod.base(), occupied_carriers, pilot_carriers, pilot_symbols, n_sync_symbols).base()</value> + </param> + <param> + <key>len_tag_key</key> + <value>length_tag_key</value> + </param> + <param> + <key>propagate_channel_state</key> + <value>False</value> + </param> + <param> + <key>_coordinate</key> + <value>(265, 612)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>fft_vxx</key> + <param> + <key>id</key> + <value>fft_vxx_0_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>type</key> + <value>complex</value> + </param> + <param> + <key>fft_size</key> + <value>fft_len</value> + </param> + <param> + <key>forward</key> + <value>True</value> + </param> + <param> + <key>window</key> + <value></value> + </param> + <param> + <key>shift</key> + <value>True</value> + </param> + <param> + <key>nthreads</key> + <value>1</value> + </param> + <param> + <key>_coordinate</key> + <value>(57, 605)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>digital_ofdm_serializer_vcc</key> + <param> + <key>id</key> + <value>digital_ofdm_serializer_vcc_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>fft_len</key> + <value>fft_len</value> + </param> + <param> + <key>occupied_carriers</key> + <value>occupied_carriers</value> + </param> + <param> + <key>len_tag_key</key> + <value>length_tag_name</value> + </param> + <param> + <key>packet_len_tag_key</key> + <value>""</value> + </param> + <param> + <key>symbols_skipped</key> + <value>0</value> + </param> + <param> + <key>input_is_shifted</key> + <value>True</value> + </param> + <param> + <key>_coordinate</key> + <value>(649, 305)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>digital_ofdm_serializer_vcc</key> + <param> + <key>id</key> + <value>digital_ofdm_serializer_vcc_1</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>fft_len</key> + <value>fft_len</value> + </param> + <param> + <key>occupied_carriers</key> + <value>occupied_carriers</value> + </param> + <param> + <key>len_tag_key</key> + <value>length_tag_key</value> + </param> + <param> + <key>packet_len_tag_key</key> + <value>""</value> + </param> + <param> + <key>symbols_skipped</key> + <value>1</value> + </param> + <param> + <key>input_is_shifted</key> + <value>True</value> + </param> + <param> + <key>_coordinate</key> + <value>(496, 597)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>digital_ofdm_chanest_vcvc</key> + <param> + <key>id</key> + <value>digital_ofdm_chanest_vcvc_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>sync_symbol1</key> + <value>sync_word</value> + </param> + <param> + <key>sync_symbol2</key> + <value>()</value> + </param> + <param> + <key>n_data_symbols</key> + <value>n_sync_symbols</value> + </param> + <param> + <key>eq_noise_red_len</key> + <value>0</value> + </param> + <param> + <key>max_carr_offset</key> + <value>-1</value> + </param> + <param> + <key>force_one_symbol</key> + <value>False</value> + </param> + <param> + <key>_coordinate</key> + <value>(52, 305)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>digital_header_payload_demux</key> + <param> + <key>id</key> + <value>digital_header_payload_demux_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>header_len</key> + <value>2</value> + </param> + <param> + <key>items_per_symbol</key> + <value>fft_len</value> + </param> + <param> + <key>guard_interval</key> + <value>fft_len/4</value> + </param> + <param> + <key>length_tag_key</key> + <value>length_tag_name</value> + </param> + <param> + <key>trigger_tag_key</key> + <value>""</value> + </param> + <param> + <key>output_symbols</key> + <value>True</value> + </param> + <param> + <key>type</key> + <value>complex</value> + </param> + <param> + <key>_coordinate</key> + <value>(340, 461)</value> + </param> + <param> + <key>_rotation</key> + <value>180</value> + </param> + </block> + <connection> + <source_block_id>fft_vxx_0</source_block_id> + <sink_block_id>digital_ofdm_chanest_vcvc_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>analog_frequency_modulator_fc_0</source_block_id> + <sink_block_id>blocks_multiply_xx_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>digital_ofdm_sync_sc_cfb_0</source_block_id> + <sink_block_id>analog_frequency_modulator_fc_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>analog_noise_source_x_0</source_block_id> + <sink_block_id>blocks_throttle_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>blocks_throttle_0</source_block_id> + <sink_block_id>digital_ofdm_sync_sc_cfb_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>blocks_throttle_0</source_block_id> + <sink_block_id>blocks_delay_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>blocks_delay_0</source_block_id> + <sink_block_id>blocks_multiply_xx_0</sink_block_id> + <source_key>0</source_key> + <sink_key>1</sink_key> + </connection> + <connection> + <source_block_id>digital_constellation_decoder_cb_0_0</source_block_id> + <sink_block_id>digital_packet_headerparser_b_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>digital_ofdm_serializer_vcc_0</source_block_id> + <sink_block_id>digital_constellation_decoder_cb_0_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>digital_ofdm_sync_sc_cfb_0</source_block_id> + <sink_block_id>digital_header_payload_demux_0</sink_block_id> + <source_key>1</source_key> + <sink_key>1</sink_key> + </connection> + <connection> + <source_block_id>digital_ofdm_chanest_vcvc_0</source_block_id> + <sink_block_id>digital_ofdm_frame_equalizer_vcvc_0_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>digital_ofdm_frame_equalizer_vcvc_0_0</source_block_id> + <sink_block_id>digital_ofdm_serializer_vcc_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>digital_packet_headerparser_b_0</source_block_id> + <sink_block_id>digital_header_payload_demux_0</sink_block_id> + <source_key>0</source_key> + <sink_key>2</sink_key> + </connection> + <connection> + <source_block_id>digital_header_payload_demux_0</source_block_id> + <sink_block_id>fft_vxx_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>digital_header_payload_demux_0</source_block_id> + <sink_block_id>fft_vxx_0_0</sink_block_id> + <source_key>1</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>blocks_multiply_xx_0</source_block_id> + <sink_block_id>digital_header_payload_demux_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>digital_constellation_decoder_cb_0</source_block_id> + <sink_block_id>gr_null_sink_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>digital_ofdm_frame_equalizer_vcvc_0</source_block_id> + <sink_block_id>digital_ofdm_serializer_vcc_1</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>digital_ofdm_serializer_vcc_1</source_block_id> + <sink_block_id>digital_constellation_decoder_cb_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>fft_vxx_0_0</source_block_id> + <sink_block_id>digital_ofdm_frame_equalizer_vcvc_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> +</flow_graph> diff --git a/gr-digital/examples/ofdm/tx_ofdm.grc b/gr-digital/examples/ofdm/tx_ofdm.grc new file mode 100644 index 0000000000..6c4f9797d1 --- /dev/null +++ b/gr-digital/examples/ofdm/tx_ofdm.grc @@ -0,0 +1,1143 @@ +<?xml version='1.0' encoding='ASCII'?> +<flow_graph> + <timestamp>Tue Feb 5 14:47:32 2013</timestamp> + <block> + <key>options</key> + <param> + <key>id</key> + <value>tx_ofdm</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>title</key> + <value>OFDM Tx</value> + </param> + <param> + <key>author</key> + <value></value> + </param> + <param> + <key>description</key> + <value>Example of an OFDM Transmitter</value> + </param> + <param> + <key>window_size</key> + <value>1280, 1024</value> + </param> + <param> + <key>generate_options</key> + <value>no_gui</value> + </param> + <param> + <key>category</key> + <value>Custom</value> + </param> + <param> + <key>run_options</key> + <value>run</value> + </param> + <param> + <key>run</key> + <value>True</value> + </param> + <param> + <key>max_nouts</key> + <value>0</value> + </param> + <param> + <key>realtime_scheduling</key> + <value></value> + </param> + <param> + <key>_coordinate</key> + <value>(0, -1)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>import</key> + <param> + <key>id</key> + <value>import_1</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>import</key> + <value>from gnuradio.digital.utils import tagged_streams</value> + </param> + <param> + <key>_coordinate</key> + <value>(164, 45)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>length_tag_name</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>"packet_len"</value> + </param> + <param> + <key>_coordinate</key> + <value>(399, 0)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>pilot_symbols_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>((100,),)</value> + </param> + <param> + <key>_coordinate</key> + <value>(735, 63)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>occupied_carriers</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>(range(-26, -21) + range(-20, -7) + range(-6, 0) + range(1, 7) + range(8, 21) + range(22, 27),)</value> + </param> + <param> + <key>_coordinate</key> + <value>(377, 63)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>pilot_symbols</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>((100,),)</value> + </param> + <param> + <key>_coordinate</key> + <value>(632, 63)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>pilot_carriers</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>((0,),)</value> + </param> + <param> + <key>_coordinate</key> + <value>(530, 63)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>fft_len</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>64</value> + </param> + <param> + <key>_coordinate</key> + <value>(311, 63)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>header_mod</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>digital.constellation_bpsk()</value> + </param> + <param> + <key>_coordinate</key> + <value>(620, 0)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>payload_mod</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>digital.constellation_qpsk()</value> + </param> + <param> + <key>_coordinate</key> + <value>(783, 0)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>blocks_throttle</key> + <param> + <key>id</key> + <value>blocks_throttle_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>type</key> + <value>byte</value> + </param> + <param> + <key>samples_per_second</key> + <value>bit_rate/8</value> + </param> + <param> + <key>vlen</key> + <value>1</value> + </param> + <param> + <key>_coordinate</key> + <value>(234, 167)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>import</key> + <param> + <key>id</key> + <value>import_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>import</key> + <value>import numpy</value> + </param> + <param> + <key>_coordinate</key> + <value>(164, 0)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>import</key> + <param> + <key>id</key> + <value>import_0_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>import</key> + <value>import random</value> + </param> + <param> + <key>_coordinate</key> + <value>(-1, 90)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>sync_word</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>[0, 0, 0, 0, 0, 0, 0, -1.0, 0, 1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, -1.0, 0, 1.0, 0, 1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, -1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, 1.0, 0, -1.0, 0, 1.0, 0, -1.0, 0, 0, 0, 0, 0, 0]</value> + </param> + <param> + <key>_coordinate</key> + <value>(95, 90)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>rolloff</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>0</value> + </param> + <param> + <key>_coordinate</key> + <value>(234, 91)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>header_formatter</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>digital.packet_header_ofdm(occupied_carriers, 1, length_tag_name)</value> + </param> + <param> + <key>_coordinate</key> + <value>(849, 63)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>gr_vector_source_x</key> + <param> + <key>id</key> + <value>gr_vector_source_x_1</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>type</key> + <value>byte</value> + </param> + <param> + <key>vector</key> + <value>range(packet_len)</value> + </param> + <param> + <key>tags</key> + <value>tagged_streams.make_lengthtags((packet_len,), (0,), length_tag_name)</value> + </param> + <param> + <key>repeat</key> + <value>True</value> + </param> + <param> + <key>vlen</key> + <value>1</value> + </param> + <param> + <key>_coordinate</key> + <value>(-1, 152)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>packet_len</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>96</value> + </param> + <param> + <key>_coordinate</key> + <value>(528, 0)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>digital_packet_headergenerator_bb</key> + <param> + <key>id</key> + <value>digital_packet_headergenerator_bb_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>header_formatter</key> + <value>header_formatter.formatter()</value> + </param> + <param> + <key>_coordinate</key> + <value>(761, 167)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>bit_rate</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>3200000</value> + </param> + <param> + <key>_coordinate</key> + <value>(311, 0)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>blocks_repack_bits_bb</key> + <param> + <key>id</key> + <value>blocks_repack_bits_bb_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>k</key> + <value>8</value> + </param> + <param> + <key>l</key> + <value>payload_mod.bits_per_symbol()</value> + </param> + <param> + <key>len_tag_key</key> + <value>length_tag_name</value> + </param> + <param> + <key>align_output</key> + <value>False</value> + </param> + <param> + <key>_coordinate</key> + <value>(516, 228)</value> + </param> + <param> + <key>_rotation</key> + <value>180</value> + </param> + </block> + <block> + <key>digital_chunks_to_symbols_xx</key> + <param> + <key>id</key> + <value>digital_chunks_to_symbols_xx_0_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>in_type</key> + <value>byte</value> + </param> + <param> + <key>out_type</key> + <value>complex</value> + </param> + <param> + <key>symbol_table</key> + <value>payload_mod.points()</value> + </param> + <param> + <key>dimension</key> + <value>1</value> + </param> + <param> + <key>num_ports</key> + <value>1</value> + </param> + <param> + <key>_coordinate</key> + <value>(279, 243)</value> + </param> + <param> + <key>_rotation</key> + <value>180</value> + </param> + </block> + <block> + <key>digital_chunks_to_symbols_xx</key> + <param> + <key>id</key> + <value>digital_chunks_to_symbols_xx_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>in_type</key> + <value>byte</value> + </param> + <param> + <key>out_type</key> + <value>complex</value> + </param> + <param> + <key>symbol_table</key> + <value>header_mod.points()</value> + </param> + <param> + <key>dimension</key> + <value>1</value> + </param> + <param> + <key>num_ports</key> + <value>1</value> + </param> + <param> + <key>_coordinate</key> + <value>(319, 305)</value> + </param> + <param> + <key>_rotation</key> + <value>180</value> + </param> + </block> + <block> + <key>blocks_tagged_stream_mux</key> + <param> + <key>id</key> + <value>blocks_tagged_stream_mux_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>type</key> + <value>complex</value> + </param> + <param> + <key>ninputs</key> + <value>2</value> + </param> + <param> + <key>lengthtagname</key> + <value>length_tag_name</value> + </param> + <param> + <key>vlen</key> + <value>1</value> + </param> + <param> + <key>_coordinate</key> + <value>(44, 254)</value> + </param> + <param> + <key>_rotation</key> + <value>180</value> + </param> + </block> + <block> + <key>digital_ofdm_carrier_allocator_cvc</key> + <param> + <key>id</key> + <value>digital_ofdm_carrier_allocator_cvc_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>fft_len</key> + <value>fft_len</value> + </param> + <param> + <key>occupied_carriers</key> + <value>occupied_carriers</value> + </param> + <param> + <key>pilot_carriers</key> + <value>pilot_carriers</value> + </param> + <param> + <key>pilot_symbols</key> + <value>pilot_symbols</value> + </param> + <param> + <key>len_tag_key</key> + <value>length_tag_name</value> + </param> + <param> + <key>_coordinate</key> + <value>(56, 453)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>gr_vector_source_x</key> + <param> + <key>id</key> + <value>sync_word_source</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>type</key> + <value>complex</value> + </param> + <param> + <key>vector</key> + <value>numpy.array(sync_word) * numpy.sqrt(2)</value> + </param> + <param> + <key>tags</key> + <value>tagged_streams.make_lengthtags((len(sync_word)/fft_len,), (0,), length_tag_name)</value> + </param> + <param> + <key>repeat</key> + <value>True</value> + </param> + <param> + <key>vlen</key> + <value>fft_len</value> + </param> + <param> + <key>_coordinate</key> + <value>(56, 356)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>blocks_tagged_stream_mux</key> + <param> + <key>id</key> + <value>blocks_tagged_stream_mux_1</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>type</key> + <value>complex</value> + </param> + <param> + <key>ninputs</key> + <value>2</value> + </param> + <param> + <key>lengthtagname</key> + <value>length_tag_name</value> + </param> + <param> + <key>vlen</key> + <value>fft_len</value> + </param> + <param> + <key>_coordinate</key> + <value>(374, 382)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>fft_vxx</key> + <param> + <key>id</key> + <value>fft_vxx_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>type</key> + <value>complex</value> + </param> + <param> + <key>fft_size</key> + <value>fft_len</value> + </param> + <param> + <key>forward</key> + <value>False</value> + </param> + <param> + <key>window</key> + <value></value> + </param> + <param> + <key>shift</key> + <value>False</value> + </param> + <param> + <key>nthreads</key> + <value>1</value> + </param> + <param> + <key>_coordinate</key> + <value>(765, 498)</value> + </param> + <param> + <key>_rotation</key> + <value>180</value> + </param> + </block> + <block> + <key>digital_ofdm_cyclic_prefixer</key> + <param> + <key>id</key> + <value>digital_ofdm_cyclic_prefixer_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>input_size</key> + <value>fft_len</value> + </param> + <param> + <key>output_size</key> + <value>fft_len+fft_len/4</value> + </param> + <param> + <key>rolloff</key> + <value>rolloff</value> + </param> + <param> + <key>tagname</key> + <value>length_tag_name</value> + </param> + <param> + <key>_coordinate</key> + <value>(488, 505)</value> + </param> + <param> + <key>_rotation</key> + <value>180</value> + </param> + </block> + <block> + <key>wxgui_fftsink2</key> + <param> + <key>id</key> + <value>wxgui_fftsink2_0</value> + </param> + <param> + <key>_enabled</key> + <value>False</value> + </param> + <param> + <key>type</key> + <value>complex</value> + </param> + <param> + <key>title</key> + <value>FFT Plot</value> + </param> + <param> + <key>samp_rate</key> + <value>1.0</value> + </param> + <param> + <key>baseband_freq</key> + <value>0</value> + </param> + <param> + <key>y_per_div</key> + <value>10</value> + </param> + <param> + <key>y_divs</key> + <value>10</value> + </param> + <param> + <key>ref_level</key> + <value>50</value> + </param> + <param> + <key>ref_scale</key> + <value>2.0</value> + </param> + <param> + <key>fft_size</key> + <value>1024</value> + </param> + <param> + <key>fft_rate</key> + <value>15</value> + </param> + <param> + <key>peak_hold</key> + <value>False</value> + </param> + <param> + <key>average</key> + <value>False</value> + </param> + <param> + <key>avg_alpha</key> + <value>0</value> + </param> + <param> + <key>win</key> + <value>None</value> + </param> + <param> + <key>win_size</key> + <value></value> + </param> + <param> + <key>grid_pos</key> + <value></value> + </param> + <param> + <key>notebook</key> + <value></value> + </param> + <param> + <key>freqvar</key> + <value>None</value> + </param> + <param> + <key>_coordinate</key> + <value>(291, 460)</value> + </param> + <param> + <key>_rotation</key> + <value>180</value> + </param> + </block> + <block> + <key>gr_null_sink</key> + <param> + <key>id</key> + <value>gr_null_sink_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>type</key> + <value>complex</value> + </param> + <param> + <key>vlen</key> + <value>1</value> + </param> + <param> + <key>_coordinate</key> + <value>(438, 633)</value> + </param> + <param> + <key>_rotation</key> + <value>180</value> + </param> + </block> + <block> + <key>digital_crc32_bb</key> + <param> + <key>id</key> + <value>digital_crc32_bb_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>check</key> + <value>False</value> + </param> + <param> + <key>lengthtagname</key> + <value>length_tag_name</value> + </param> + <param> + <key>_coordinate</key> + <value>(472, 159)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>blocks_tag_debug</key> + <param> + <key>id</key> + <value>blocks_tag_debug_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>type</key> + <value>byte</value> + </param> + <param> + <key>name</key> + <value>tdb</value> + </param> + <param> + <key>num_inputs</key> + <value>1</value> + </param> + <param> + <key>vlen</key> + <value>1</value> + </param> + <param> + <key>display</key> + <value>False</value> + </param> + <param> + <key>_coordinate</key> + <value>(819, 232)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <connection> + <source_block_id>gr_vector_source_x_1</source_block_id> + <sink_block_id>blocks_throttle_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>blocks_throttle_0</source_block_id> + <sink_block_id>digital_crc32_bb_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>digital_crc32_bb_0</source_block_id> + <sink_block_id>digital_packet_headergenerator_bb_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>blocks_tagged_stream_mux_0</source_block_id> + <sink_block_id>digital_ofdm_carrier_allocator_cvc_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>digital_ofdm_carrier_allocator_cvc_0</source_block_id> + <sink_block_id>blocks_tagged_stream_mux_1</sink_block_id> + <source_key>0</source_key> + <sink_key>1</sink_key> + </connection> + <connection> + <source_block_id>sync_word_source</source_block_id> + <sink_block_id>blocks_tagged_stream_mux_1</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>digital_packet_headergenerator_bb_0</source_block_id> + <sink_block_id>digital_chunks_to_symbols_xx_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>blocks_repack_bits_bb_0</source_block_id> + <sink_block_id>digital_chunks_to_symbols_xx_0_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>digital_chunks_to_symbols_xx_0</source_block_id> + <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>digital_chunks_to_symbols_xx_0_0</source_block_id> + <sink_block_id>blocks_tagged_stream_mux_0</sink_block_id> + <source_key>0</source_key> + <sink_key>1</sink_key> + </connection> + <connection> + <source_block_id>digital_crc32_bb_0</source_block_id> + <sink_block_id>blocks_repack_bits_bb_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>blocks_tagged_stream_mux_1</source_block_id> + <sink_block_id>fft_vxx_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>digital_ofdm_cyclic_prefixer_0</source_block_id> + <sink_block_id>wxgui_fftsink2_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>fft_vxx_0</source_block_id> + <sink_block_id>digital_ofdm_cyclic_prefixer_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>digital_ofdm_cyclic_prefixer_0</source_block_id> + <sink_block_id>gr_null_sink_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>digital_crc32_bb_0</source_block_id> + <sink_block_id>blocks_tag_debug_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> +</flow_graph> |