kopia lustrzana https://github.com/Dsplib/libdspl-2.0
57 wiersze
1.6 KiB
C
57 wiersze
1.6 KiB
C
/*
|
|
* Copyright (c) 2015-2017 Sergey Bakhurin
|
|
* Digital Signal Processing Library [http://dsplib.org]
|
|
*
|
|
* This file is part of DSPL.
|
|
*
|
|
* is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* DSPL is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with Foobar. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <math.h>
|
|
#include "dspl.h"
|
|
|
|
|
|
/**************************************************************************************************
|
|
Rectangle pulse signal
|
|
***************************************************************************************************/
|
|
int signal_pimp(double* t, size_t n, double amp, double tau, double dt, double period, double* y)
|
|
{
|
|
int k;
|
|
double ll, lr, p2, tp;
|
|
|
|
if(!t || !y)
|
|
return ERROR_PTR;
|
|
if(n < 1)
|
|
return ERROR_SIZE;
|
|
if(tau < 0.0 || period < 0.0)
|
|
return ERROR_NEGATIVE;
|
|
|
|
|
|
ll = -0.5 * tau;
|
|
lr = 0.5 * tau;
|
|
p2 = period*0.5;
|
|
for(k = 0; k < n; k++)
|
|
{
|
|
tp = dmod(t[k] - dt + p2, period) - p2;
|
|
y[k] = (tp < ll || tp > lr) ? 0.0 : amp;
|
|
}
|
|
|
|
return RES_OK;
|
|
}
|
|
|
|
|