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/* -*- c++ -*- */
/*
* Copyright 2004,2005,2013 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "vco.h"
#include <gnuradio/fxpt_vco.h>
#include <unistd.h>
#include <boost/test/unit_test.hpp>
#include <cmath>
static const float SIN_COS_TOLERANCE = 1e-5;
static const float SIN_COS_K = 0.42;
static const float SIN_COS_AMPL = 0.8;
static const int SIN_COS_BLOCK_SIZE = 100000;
static double max_d(double a, double b) { return fabs(a) > fabs(b) ? a : b; }
BOOST_AUTO_TEST_CASE(t0)
{
gr::vco<float, float> ref_vco;
gr::fxpt_vco new_vco;
double max_error = 0, max_phase_error = 0;
float input[SIN_COS_BLOCK_SIZE];
for (int i = 0; i < SIN_COS_BLOCK_SIZE; i++) {
input[i] = sin(double(i));
}
for (int i = 0; i < SIN_COS_BLOCK_SIZE; i++) {
float ref_cos = ref_vco.cos();
float new_cos = new_vco.cos();
BOOST_CHECK(std::abs(ref_cos - new_cos) <= SIN_COS_TOLERANCE);
max_error = max_d(max_error, ref_cos - new_cos);
ref_vco.adjust_phase(input[i]);
new_vco.adjust_phase(input[i]);
BOOST_CHECK(std::abs(ref_vco.get_phase() - new_vco.get_phase()) <=
SIN_COS_TOLERANCE);
max_phase_error =
max_d(max_phase_error, ref_vco.get_phase() - new_vco.get_phase());
}
}
BOOST_AUTO_TEST_CASE(t1)
{
gr::vco<float, float> ref_vco;
gr::fxpt_vco new_vco;
std::vector<float> ref_block(SIN_COS_BLOCK_SIZE);
std::vector<float> new_block(SIN_COS_BLOCK_SIZE);
std::vector<float> input(SIN_COS_BLOCK_SIZE);
double max_error = 0;
for (int i = 0; i < SIN_COS_BLOCK_SIZE; i++) {
input[i] = sin(double(i));
}
ref_vco.cos(
ref_block.data(), input.data(), SIN_COS_BLOCK_SIZE, SIN_COS_K, SIN_COS_AMPL);
new_vco.cos(
new_block.data(), input.data(), SIN_COS_BLOCK_SIZE, SIN_COS_K, SIN_COS_AMPL);
for (int i = 0; i < SIN_COS_BLOCK_SIZE; i++) {
BOOST_CHECK(std::abs(ref_block[i] - new_block[i]) <= SIN_COS_TOLERANCE);
max_error = max_d(max_error, ref_block[i] - new_block[i]);
}
BOOST_CHECK(std::abs(ref_vco.get_phase() - new_vco.get_phase()) <= SIN_COS_TOLERANCE);
}
BOOST_AUTO_TEST_CASE(t2)
{
gr::vco<gr_complex, float> ref_vco;
gr::fxpt_vco new_vco;
std::vector<gr_complex> ref_block(SIN_COS_BLOCK_SIZE);
std::vector<gr_complex> new_block(SIN_COS_BLOCK_SIZE);
std::vector<float> input(SIN_COS_BLOCK_SIZE);
double max_error = 0;
for (int i = 0; i < SIN_COS_BLOCK_SIZE; i++) {
input[i] = sin(double(i));
}
ref_vco.sincos(
ref_block.data(), input.data(), SIN_COS_BLOCK_SIZE, SIN_COS_K, SIN_COS_AMPL);
new_vco.sincos(
new_block.data(), input.data(), SIN_COS_BLOCK_SIZE, SIN_COS_K, SIN_COS_AMPL);
for (int i = 0; i < SIN_COS_BLOCK_SIZE; i++) {
BOOST_CHECK(std::abs(ref_block[i] - new_block[i]) <= SIN_COS_TOLERANCE);
max_error = max_d(max_error, abs(ref_block[i] - new_block[i]));
}
BOOST_CHECK(std::abs(ref_vco.get_phase() - new_vco.get_phase()) <= SIN_COS_TOLERANCE);
}
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