void ofdmoqamframe64sync_execute(ofdmoqamframe64sync _q,
float complex * _x,
unsigned int _n)
{
unsigned int i;
float complex x;
for (i=0; i<_n; i++) {
x = _x[i];
#if DEBUG_OFDMOQAMFRAME64SYNC
windowcf_push(_q->debug_x,x);
#endif
_q->num_samples++;
// coarse gain correction
//x *= _q->g;
// compensate for CFO
nco_crcf_mix_down(_q->nco_rx, x, &x);
// push sample into analysis filter banks
float complex x_delay0;
float complex x_delay1;
windowcf_index(_q->input_buffer,0, &x_delay0); // full symbol delay
windowcf_index(_q->input_buffer,32,&x_delay1); // half symbol delay
windowcf_push(_q->input_buffer,x);
firpfbch_analyzer_push(_q->ca0, x_delay0); // push input sample
firpfbch_analyzer_push(_q->ca1, x_delay1); // push delayed sample
switch (_q->state) {
case OFDMOQAMFRAME64SYNC_STATE_PLCPSHORT:
ofdmoqamframe64sync_execute_plcpshort(_q,x);
break;
case OFDMOQAMFRAME64SYNC_STATE_PLCPLONG0:
ofdmoqamframe64sync_execute_plcplong0(_q,x);
break;
case OFDMOQAMFRAME64SYNC_STATE_PLCPLONG1:
ofdmoqamframe64sync_execute_plcplong1(_q,x);
break;
case OFDMOQAMFRAME64SYNC_STATE_RXSYMBOLS:
ofdmoqamframe64sync_execute_rxsymbols(_q,x);
break;
default:;
}
} // for (i=0; i<_n; i++)
} // ofdmoqamframe64sync_execute()
void firpfbch_analyzer_execute(firpfbch _c, float complex * _x, float complex * _y)
{
unsigned int i;
for (i=0; i<_c->num_channels; i++)
firpfbch_analyzer_push(_c,_x[i]);
// run the analysis filters on the given input
firpfbch_analyzer_run(_c,_y);
// save the run state : IDFT input X -> X_prime
firpfbch_analyzer_saverunstate(_c);
}
