diff options
Diffstat (limited to 'src/c/signalProcessing/cheb1mag')
| -rw-r--r-- | src/c/signalProcessing/cheb1mag/cheb1mag.h | 27 | ||||
| -rw-r--r-- | src/c/signalProcessing/cheb1mag/dcheb1mags.c | 35 | ||||
| -rw-r--r-- | src/c/signalProcessing/cheb1mag/int_cheb1mag.h | 18 |
3 files changed, 80 insertions, 0 deletions
diff --git a/src/c/signalProcessing/cheb1mag/cheb1mag.h b/src/c/signalProcessing/cheb1mag/cheb1mag.h new file mode 100644 index 0000000..369ee4c --- /dev/null +++ b/src/c/signalProcessing/cheb1mag/cheb1mag.h @@ -0,0 +1,27 @@ +/* Copyright (C) 2016 - IIT Bombay - FOSSEE + + This file must be used under the terms of the CeCILL. + This source file is licensed as described in the file COPYING, which + you should have received as part of this distribution. The terms + are also available at + http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt + Author: Ankit Raj + Organization: FOSSEE, IIT Bombay + Email: toolbox@scilab.in + */ + +#ifndef __CHEB1MAG_H__ +#define __CHEB1MAG_H__ +#include "types.h" + +#ifdef __cplusplus +extern "C" { +#endif + +void dcheb1mags(double n, double omegac, double epsilon, double* sample,int size,double* out); + +#ifdef __cplusplus +} /* extern "C" */ +#endif + +#endif /* __CHEB1MAG_H__ */ diff --git a/src/c/signalProcessing/cheb1mag/dcheb1mags.c b/src/c/signalProcessing/cheb1mag/dcheb1mags.c new file mode 100644 index 0000000..a4a459d --- /dev/null +++ b/src/c/signalProcessing/cheb1mag/dcheb1mags.c @@ -0,0 +1,35 @@ +/* Copyright (C) 2017 - IIT Bombay - FOSSEE + + This file must be used under the terms of the CeCILL. + This source file is licensed as described in the file COPYING, which + you should have received as part of this distribution. The terms + are also available at + http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt + Author: Ankit Raj + Organization: FOSSEE, IIT Bombay + Email: toolbox@scilab.in + */ +#include<stdio.h> +#include<math.h> +#include "cheb1mag.h" +void dcheb1mags(double n, double omegac, double epsilon, double* sample,int size,double* out) +{ + double x; + int j; + double tn; + for(j=0;j<size;j++) + { + x=sample[j]/omegac; + if(x<=1) + { + tn=cos(n*acos(x)); + out[j]=1/(1+(epsilon*epsilon)*(tn*tn)); + } + else + { + tn=cosh(n*acosh(x)); + out[j]=1/(1+(epsilon*epsilon)*(tn*tn)); + } + } +} + diff --git a/src/c/signalProcessing/cheb1mag/int_cheb1mag.h b/src/c/signalProcessing/cheb1mag/int_cheb1mag.h new file mode 100644 index 0000000..fa0ff83 --- /dev/null +++ b/src/c/signalProcessing/cheb1mag/int_cheb1mag.h @@ -0,0 +1,18 @@ +/* Copyright (C) 2016 - IIT Bombay - FOSSEE + + This file must be used under the terms of the CeCILL. + This source file is licensed as described in the file COPYING, which + you should have received as part of this distribution. The terms + are also available at + http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt + Author: Ankit Raj + Organization: FOSSEE, IIT Bombay + Email: toolbox@scilab.in + */ + +#ifndef __INT_CHEB1MAG_H__ +#define __INT_CHEB1MAG_H__ + +#define d0d0d2cheb1magd2(n,omegac,epsilon,sample,size,out) dcheb1mags(n,omegac,epsilon,sample,size,out) + +#endif /* !__INT_CHEB1MAG_H__! */ |