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Fix d_prev_pilots for symbols 0 and 1 in frame_equalizer_impl.cc

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mychele
2020-07-29 09:42:55 -07:00
parent d63adab8f1
commit 7a2cbdb8d8
1 changed files with 11 additions and 9 deletions
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lib/frame_equalizer_impl.cc
+7 -5
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@@ -153,11 +153,6 @@ frame_equalizer_impl::general_work (int noutput_items,
} }
gr_complex p = equalizer::base::POLARITY[(d_current_symbol - 2) % 127]; gr_complex p = equalizer::base::POLARITY[(d_current_symbol - 2) % 127];
gr_complex sum =
(current_symbol[11] * p) +
(current_symbol[25] * p) +
(current_symbol[39] * p) +
(current_symbol[53] * -p);
double beta; double beta;
if(d_current_symbol < 2) { if(d_current_symbol < 2) {
@@ -183,10 +178,17 @@ frame_equalizer_impl::general_work (int noutput_items,
er *= d_bw / (2 * M_PI * d_freq * 80); er *= d_bw / (2 * M_PI * d_freq * 80);
if(d_current_symbol < 2) {
d_prev_pilots[0] = current_symbol[11];
d_prev_pilots[1] = -current_symbol[25];
d_prev_pilots[2] = current_symbol[39];
d_prev_pilots[3] = current_symbol[53];
} else {
d_prev_pilots[0] = current_symbol[11] * p; d_prev_pilots[0] = current_symbol[11] * p;
d_prev_pilots[1] = current_symbol[25] * p; d_prev_pilots[1] = current_symbol[25] * p;
d_prev_pilots[2] = current_symbol[39] * p; d_prev_pilots[2] = current_symbol[39] * p;
d_prev_pilots[3] = current_symbol[53] * -p; d_prev_pilots[3] = current_symbol[53] * -p;
}
// compensate residual frequency offset // compensate residual frequency offset
for(int i = 0; i < 64; i++) { for(int i = 0; i < 64; i++) {