diff options
Diffstat (limited to 'gr-digital/python/digital/qa_ofdm_chanest_vcvc.py')
| -rw-r--r--[-rwxr-xr-x] | gr-digital/python/digital/qa_ofdm_chanest_vcvc.py | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/gr-digital/python/digital/qa_ofdm_chanest_vcvc.py b/gr-digital/python/digital/qa_ofdm_chanest_vcvc.py index d63b65d018..e39247da0a 100755..100644 --- a/gr-digital/python/digital/qa_ofdm_chanest_vcvc.py +++ b/gr-digital/python/digital/qa_ofdm_chanest_vcvc.py @@ -19,6 +19,8 @@ # Boston, MA 02110-1301, USA. # +from __future__ import division + import sys import numpy import random @@ -203,7 +205,7 @@ class qa_ofdm_chanest_vcvc (gr_unittest.TestCase): tx_data = shift_tuple(sync_symbol1, carr_offset) + \ shift_tuple(sync_symbol2, carr_offset) + \ shift_tuple(data_symbol, carr_offset) - channel = range(fft_len) + channel = list(range(fft_len)) src = blocks.vector_source_c(tx_data, False, fft_len) chan = blocks.multiply_const_vcc(channel) chanest = digital.ofdm_chanest_vcvc(sync_symbol1, sync_symbol2, 1) @@ -234,7 +236,7 @@ class qa_ofdm_chanest_vcvc (gr_unittest.TestCase): n_iter = 20 # The more the accurater def run_flow_graph(sync_sym1, sync_sym2, data_sym): top_block = gr.top_block() - carr_offset = random.randint(-max_offset/2, max_offset/2) * 2 + carr_offset = random.randint(-max_offset / 2, max_offset / 2) * 2 tx_data = shift_tuple(sync_sym1, carr_offset) + \ shift_tuple(sync_sym2, carr_offset) + \ shift_tuple(data_sym, carr_offset) @@ -265,14 +267,14 @@ class qa_ofdm_chanest_vcvc (gr_unittest.TestCase): rx_sym_est[i] = (sink.data()[i] / channel_est[i]).real return (carr_offset, list(shift_tuple(rx_sym_est, -carr_offset_hat))) bit_errors = 0 - for k in xrange(n_iter): + for k in range(n_iter): sync_sym = [(random.randint(0, 1) * 2 - 1) * syncsym_mask[i] for i in range(fft_len)] ref_sym = [(random.randint(0, 1) * 2 - 1) * carrier_mask[i] for i in range(fft_len)] data_sym = [(random.randint(0, 1) * 2 - 1) * carrier_mask[i] for i in range(fft_len)] data_sym[26] = 1 (carr_offset, rx_sym) = run_flow_graph(sync_sym, ref_sym, data_sym) rx_sym_est = [0,] * fft_len - for i in xrange(fft_len): + for i in range(fft_len): if carrier_mask[i] == 0: continue rx_sym_est[i] = {True: 1, False: -1}[rx_sym[i] > 0] |