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- closed the Gardner Loop

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git-svn-id: http://moon:8086/svn/software/trunk/libsrc/cpp@985 b431acfa-c32f-4a4a-93f1-934dc6c82436
This commit is contained in:
jens
2022-06-15 14:54:57 +00:00
parent 6203cabecf
commit e513ae7e40
1 changed files with 11 additions and 7 deletions
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radio/tests/interpolation/farrow/test.cpp
+11 -7
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@@ -78,8 +78,8 @@ void wavSave(const char *pName, WAVEHEADER const &format, CVec &iq)
}
const radio_float_t STR_GAIN_LEAD_AQU = (radio_float_t)4.00E-4; // 2E-3
const radio_float_t STR_GAIN_LAG_AQU = (radio_float_t)0.50E-6; // 5E-7
const radio_float_t STR_GAIN_LEAD_AQU = (radio_float_t)1.00E-2; // 2E-3
const radio_float_t STR_GAIN_LAG_AQU = (radio_float_t)1.00E-7; // 5E-7
const radio_float_t STR_GAIN_LEAD_TRK = (radio_float_t)4.00E-6; // 8E-4
const radio_float_t STR_GAIN_LAG_TRK = (radio_float_t)1.00E-9; // 1E-6
@@ -100,6 +100,10 @@ class TimingGeneratorGardner : public Interpolation::TimingGenerator
LeadLagSetCoeff(&str_loopfilter_coeff, STR_GAIN_LEAD_AQU, STR_GAIN_LAG_AQU);
}
void setOmega(radio_float_t omega)
{
LeadLagInit(&loop_filter_str, omega);
}
virtual ~TimingGeneratorGardner() = default;
void process(ComplexScalar const &iq)
@@ -110,10 +114,9 @@ class TimingGeneratorGardner : public Interpolation::TimingGenerator
// Symbol timing recovery
vd = STRGardnerProcess(&m_SymbolTimingRevovery, toCpx(iq));
vc = LeadLagProcess(&loop_filter_str, &str_loopfilter_coeff, vd);
cout << "Vd = " << vd << ", Vc = " << vc << endl;
cout << "Vd = " << vd << ", Vc = " << vc << ", mu = " << m_mu << endl;
setOmega(vc);
update();
update(vc);
}
};
@@ -130,8 +133,9 @@ void test()
// Setup IQ data
WAVEHEADER header;
CVec iq_in = wavLoad("m2_12k_12k_i_q_short.wav", header);
// CVec iq_in = wavLoad("sine_220.wav", header);
// CVec iq_in = wavLoad("m2_12k_12k_i_q_short.wav", header);
// CVec iq_in = wavLoad("sine_12k_ef_1_percent.wav", header);
CVec iq_in = wavLoad("sine_12k.wav", header);
CVec iq_out;
iq_out.reserve(8*iq_in.size());