diff options
Diffstat (limited to 'gr-digital/python/ofdm_sync_ml.py')
| -rw-r--r-- | gr-digital/python/ofdm_sync_ml.py | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/gr-digital/python/ofdm_sync_ml.py b/gr-digital/python/ofdm_sync_ml.py index 7c75d7f1d4..f732fdf29a 100644 --- a/gr-digital/python/ofdm_sync_ml.py +++ b/gr-digital/python/ofdm_sync_ml.py @@ -23,6 +23,11 @@ import math from gnuradio import gr +try: + from gnuradio import filter +except ImportError: + import filter_swig as filter + class ofdm_sync_ml(gr.hier_block2): def __init__(self, fft_length, cp_length, snr, kstime, logging): ''' Maximum Likelihood OFDM synchronizer: @@ -57,7 +62,7 @@ class ofdm_sync_ml(gr.hier_block2): self.adder = gr.add_ff() moving_sum_taps = [rho/2 for i in range(cp_length)] - self.moving_sum_filter = gr.fir_filter_fff(1,moving_sum_taps) + self.moving_sum_filter = filter.fir_filter_fff(1,moving_sum_taps) self.connect(self.input,self.magsqrd1) self.connect(self.delay,self.magsqrd2) @@ -71,7 +76,7 @@ class ofdm_sync_ml(gr.hier_block2): self.mixer = gr.multiply_cc(); movingsum2_taps = [1.0 for i in range(cp_length)] - self.movingsum2 = gr.fir_filter_ccf(1,movingsum2_taps) + self.movingsum2 = filter.fir_filter_ccf(1,movingsum2_taps) # Correlator data handler self.c2mag = gr.complex_to_mag() @@ -115,7 +120,7 @@ class ofdm_sync_ml(gr.hier_block2): # to readjust the timing in the middle of the packet or we ruin the equalizer settings. kstime = [k.conjugate() for k in kstime] kstime.reverse() - self.kscorr = gr.fir_filter_ccc(1, kstime) + self.kscorr = filter.fir_filter_ccc(1, kstime) self.corrmag = gr.complex_to_mag_squared() self.div = gr.divide_ff() |