cpp/radio/tests/interpolation/farrow/test.cpp

#include <cpp/radio/Vector.hpp>
#include <cpp/radio/FirComplex.hpp>
#include <cpp/radio/interpolation/Farrow.hpp>
#include <cpp/radio/interpolation/PolyPhase.hpp>
#include <radio/synchronization.h>
#include <wav/wav.h>

#include <string.h>

using namespace Radio;

void test()
{
	WAV wavRead;

	WavOpen(&wavRead, "m2_12k_12k_i_q.wav");

	Interpolation::Farrow m_farrow;

	// Loop-Filter
	lead_lag_filter_t m_loop_filter_str;
	lead_lag_coeff_t str_loopfilter_coeff;

	// Gardner Symbol Timing Recovery
	str_t m_SymbolTimingRevovery;
	timing_corrector_t m_timing_corrector;

	radio_float_t m_Vc;

	size_t len = 0;
	CVec iq;

	for (size_t n = 0; n < len; n++)
	{
		// @2 x symbolrate
		// Matched filtering and interpolation
		ComplexScalar iq_ip = m_farrow.process_new(iq[n], m_Vc);

		// Symbol timing recovery
		radio_float_t Vd = STRGardnerProcess(&m_SymbolTimingRevovery, toCpx(iq_ip));
		m_Vc = LeadLagProcess(&m_loop_filter_str, &str_loopfilter_coeff, Vd);
	}

}