diff options
Diffstat (limited to 'gr-digital/examples/ofdm/ofdm_loopback.grc')
| -rw-r--r-- | gr-digital/examples/ofdm/ofdm_loopback.grc | 861 |
1 files changed, 861 insertions, 0 deletions
diff --git a/gr-digital/examples/ofdm/ofdm_loopback.grc b/gr-digital/examples/ofdm/ofdm_loopback.grc new file mode 100644 index 0000000000..45a6ca0869 --- /dev/null +++ b/gr-digital/examples/ofdm/ofdm_loopback.grc @@ -0,0 +1,861 @@ +<?xml version='1.0' encoding='ASCII'?> +<flow_graph> + <timestamp>Tue May 7 15:42:23 2013</timestamp> + <block> + <key>options</key> + <param> + <key>id</key> + <value>ofdm_loopback_example</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>title</key> + <value>OFDM Loopback Example</value> + </param> + <param> + <key>author</key> + <value></value> + </param> + <param> + <key>description</key> + <value>Transmit a pre-defined signal (a complex sine) as OFDM packets.</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>len_tag_key</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>"packet_len"</value> + </param> + <param> + <key>_coordinate</key> + <value>(345, 0)</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>(464, 0)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable_slider</key> + <param> + <key>id</key> + <value>freq_offset</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>label</key> + <value>Frequency Offset (Multiples of Sub-carrier spacing)</value> + </param> + <param> + <key>value</key> + <value>0</value> + </param> + <param> + <key>min</key> + <value>-3</value> + </param> + <param> + <key>max</key> + <value>3</value> + </param> + <param> + <key>num_steps</key> + <value>100</value> + </param> + <param> + <key>style</key> + <value>wx.SL_HORIZONTAL</value> + </param> + <param> + <key>converver</key> + <value>float_converter</value> + </param> + <param> + <key>grid_pos</key> + <value></value> + </param> + <param> + <key>notebook</key> + <value></value> + </param> + <param> + <key>_coordinate</key> + <value>(652, 285)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable_slider</key> + <param> + <key>id</key> + <value>noise_voltage</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>label</key> + <value>Noise Amplitude</value> + </param> + <param> + <key>value</key> + <value>0.01</value> + </param> + <param> + <key>min</key> + <value>0</value> + </param> + <param> + <key>max</key> + <value>1</value> + </param> + <param> + <key>num_steps</key> + <value>100</value> + </param> + <param> + <key>style</key> + <value>wx.SL_HORIZONTAL</value> + </param> + <param> + <key>converver</key> + <value>float_converter</value> + </param> + <param> + <key>grid_pos</key> + <value></value> + </param> + <param> + <key>notebook</key> + <value></value> + </param> + <param> + <key>_coordinate</key> + <value>(651, 416)</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>(536, -1)</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>from gnuradio.digital.utils import tagged_streams</value> + </param> + <param> + <key>_coordinate</key> + <value>(633, -1)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>digital_ofdm_tx</key> + <param> + <key>id</key> + <value>digital_ofdm_tx_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>packet_len_key</key> + <value>len_tag_key</value> + </param> + <param> + <key>occupied_carriers</key> + <value>()</value> + </param> + <param> + <key>pilot_carriers</key> + <value>()</value> + </param> + <param> + <key>pilot_symbols</key> + <value>()</value> + </param> + <param> + <key>sync_word1</key> + <value>()</value> + </param> + <param> + <key>sync_word2</key> + <value>()</value> + </param> + <param> + <key>header_mod</key> + <value>"BPSK"</value> + </param> + <param> + <key>payload_mod</key> + <value>"BPSK"</value> + </param> + <param> + <key>rolloff</key> + <value>0</value> + </param> + <param> + <key>log</key> + <value>False</value> + </param> + <param> + <key>_coordinate</key> + <value>(390, 78)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>blocks_float_to_uchar</key> + <param> + <key>id</key> + <value>blocks_float_to_uchar_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>_coordinate</key> + <value>(230, 119)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>variable</key> + <param> + <key>id</key> + <value>tx_signal</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>value</key> + <value>[numpy.sin(2 * numpy.pi * 1.0/8 * x) for x in range(8*2)]</value> + </param> + <param> + <key>_coordinate</key> + <value>(176, -1)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>blocks_vector_source_x</key> + <param> + <key>id</key> + <value>blocks_vector_source_x_0</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>type</key> + <value>float</value> + </param> + <param> + <key>vector</key> + <value>tx_signal</value> + </param> + <param> + <key>tags</key> + <value>tagged_streams.make_lengthtags((8*2*gr.sizeof_float,), (0,), tagname=len_tag_key)</value> + </param> + <param> + <key>repeat</key> + <value>True</value> + </param> + <param> + <key>vlen</key> + <value>1</value> + </param> + <param> + <key>_coordinate</key> + <value>(-1, 101)</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>100e3</value> + </param> + <param> + <key>vlen</key> + <value>1</value> + </param> + <param> + <key>_coordinate</key> + <value>(354, 230)</value> + </param> + <param> + <key>_rotation</key> + <value>180</value> + </param> + </block> + <block> + <key>blocks_tag_gate</key> + <param> + <key>id</key> + <value>blocks_tag_gate_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>propagate_tags</key> + <value>False</value> + </param> + <param> + <key>_coordinate</key> + <value>(539, 230)</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>True</value> + </param> + <param> + <key>type</key> + <value>complex</value> + </param> + <param> + <key>title</key> + <value>Rx Spectrum</value> + </param> + <param> + <key>samp_rate</key> + <value>100e3</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>0</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>(92, 463)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>channel_model</key> + <param> + <key>id</key> + <value>chan_model</value> + </param> + <param> + <key>_enabled</key> + <value>True</value> + </param> + <param> + <key>noise_voltage</key> + <value>noise_voltage</value> + </param> + <param> + <key>freq_offset</key> + <value>1.0/fft_len * freq_offset</value> + </param> + <param> + <key>epsilon</key> + <value>1.0</value> + </param> + <param> + <key>taps</key> + <value>1.0</value> + </param> + <param> + <key>seed</key> + <value>0</value> + </param> + <param> + <key>_coordinate</key> + <value>(615, 86)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>digital_ofdm_rx</key> + <param> + <key>id</key> + <value>digital_ofdm_rx_0</value> + </param> + <param> + <key>_enabled</key> + <value>False</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>packet_len_key</key> + <value>"rx_len"</value> + </param> + <param> + <key>occupied_carriers</key> + <value>()</value> + </param> + <param> + <key>pilot_carriers</key> + <value>()</value> + </param> + <param> + <key>pilot_symbols</key> + <value>()</value> + </param> + <param> + <key>sync_word1</key> + <value>()</value> + </param> + <param> + <key>sync_word2</key> + <value>()</value> + </param> + <param> + <key>header_mod</key> + <value>"BPSK"</value> + </param> + <param> + <key>payload_mod</key> + <value>"BPSK"</value> + </param> + <param> + <key>log</key> + <value>False</value> + </param> + <param> + <key>_coordinate</key> + <value>(92, 307)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>blocks_uchar_to_float</key> + <param> + <key>id</key> + <value>blocks_uchar_to_float_0</value> + </param> + <param> + <key>_enabled</key> + <value>False</value> + </param> + <param> + <key>_coordinate</key> + <value>(332, 340)</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>False</value> + </param> + <param> + <key>type</key> + <value>byte</value> + </param> + <param> + <key>name</key> + <value>Rx Packets</value> + </param> + <param> + <key>num_inputs</key> + <value>1</value> + </param> + <param> + <key>vlen</key> + <value>1</value> + </param> + <param> + <key>display</key> + <value>True</value> + </param> + <param> + <key>_coordinate</key> + <value>(336, 412)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <block> + <key>wxgui_scopesink2</key> + <param> + <key>id</key> + <value>wxgui_scopesink2_0</value> + </param> + <param> + <key>_enabled</key> + <value>False</value> + </param> + <param> + <key>type</key> + <value>float</value> + </param> + <param> + <key>title</key> + <value>Scope Plot</value> + </param> + <param> + <key>samp_rate</key> + <value>1.0</value> + </param> + <param> + <key>v_scale</key> + <value>0</value> + </param> + <param> + <key>v_offset</key> + <value>0</value> + </param> + <param> + <key>t_scale</key> + <value>0</value> + </param> + <param> + <key>ac_couple</key> + <value>False</value> + </param> + <param> + <key>xy_mode</key> + <value>False</value> + </param> + <param> + <key>num_inputs</key> + <value>1</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>trig_mode</key> + <value>gr.gr_TRIG_MODE_AUTO</value> + </param> + <param> + <key>y_axis_label</key> + <value>Counts</value> + </param> + <param> + <key>_coordinate</key> + <value>(504, 314)</value> + </param> + <param> + <key>_rotation</key> + <value>0</value> + </param> + </block> + <connection> + <source_block_id>blocks_vector_source_x_0</source_block_id> + <sink_block_id>blocks_float_to_uchar_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>digital_ofdm_tx_0</source_block_id> + <sink_block_id>chan_model</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>blocks_float_to_uchar_0</source_block_id> + <sink_block_id>digital_ofdm_tx_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_rx_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>wxgui_fftsink2_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>digital_ofdm_rx_0</source_block_id> + <sink_block_id>blocks_uchar_to_float_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>blocks_uchar_to_float_0</source_block_id> + <sink_block_id>wxgui_scopesink2_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>digital_ofdm_rx_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> + <connection> + <source_block_id>chan_model</source_block_id> + <sink_block_id>blocks_tag_gate_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> + <connection> + <source_block_id>blocks_tag_gate_0</source_block_id> + <sink_block_id>blocks_throttle_0</sink_block_id> + <source_key>0</source_key> + <sink_key>0</sink_key> + </connection> +</flow_graph> |