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author | Jorawar Singh | 2017-06-30 11:54:22 +0530 |
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committer | Jorawar Singh | 2017-06-30 11:54:22 +0530 |
commit | a7d283ae2899b2530ac70a2453d4db05d03d609d (patch) | |
tree | fb93a9edddeee4601c47ce73e173331fa3addac8 /src/c/signalProcessing/cheb2mag | |
parent | aef4e8398f2b1848b0e4cdd9580dbbe93e4006f9 (diff) | |
parent | bee6bf6e37f6c36fb18b6132702e1528b7edafc2 (diff) | |
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merged main repo with local
Diffstat (limited to 'src/c/signalProcessing/cheb2mag')
-rw-r--r-- | src/c/signalProcessing/cheb2mag/cheb2mag.h | 27 | ||||
-rw-r--r-- | src/c/signalProcessing/cheb2mag/dcheb2mags.c | 49 | ||||
-rw-r--r-- | src/c/signalProcessing/cheb2mag/int_cheb2mag.h | 18 |
3 files changed, 94 insertions, 0 deletions
diff --git a/src/c/signalProcessing/cheb2mag/cheb2mag.h b/src/c/signalProcessing/cheb2mag/cheb2mag.h new file mode 100644 index 0000000..0516ca5 --- /dev/null +++ b/src/c/signalProcessing/cheb2mag/cheb2mag.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 __CHEB2MAG_H__ +#define __CHEB2MAG_H__ +#include "types.h" + +#ifdef __cplusplus +extern "C" { +#endif + +void dcheb2mags(double n,double omegar, double A, double* sample,int size,double* oup); + +#ifdef __cplusplus +} /* extern "C" */ +#endif + +#endif /* __CHEB2MAG_H__ */ diff --git a/src/c/signalProcessing/cheb2mag/dcheb2mags.c b/src/c/signalProcessing/cheb2mag/dcheb2mags.c new file mode 100644 index 0000000..006c591 --- /dev/null +++ b/src/c/signalProcessing/cheb2mag/dcheb2mags.c @@ -0,0 +1,49 @@ +/* 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 "cheb2mag.h" +void dcheb2mags(double n,double omegar, double A, double* sample,int size,double* oup) +{ + double e; + //e=sqrt(A*A-1); + e=1/(pow(10,A/10)-1); + double x,k,cn,h,tp; + int i; + for(i=0;i<size;i++) + { + x=omegar/sample[i]; + if(x<=1) + { + tp=acos(x); + cn=cos(n*tp); + if(x==1) + { + h=1/(1+A*A-1); + } + else + { + h=1/(1+((A*A-1)/(cn*cn))); + } + + } + else + { + tp=acosh(x); + cn=cosh(n*tp); + h=e*(cn*cn)/(1+e*(cn*cn)); + + } + oup[i]=h; + } +} + diff --git a/src/c/signalProcessing/cheb2mag/int_cheb2mag.h b/src/c/signalProcessing/cheb2mag/int_cheb2mag.h new file mode 100644 index 0000000..05b77c2 --- /dev/null +++ b/src/c/signalProcessing/cheb2mag/int_cheb2mag.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_CHEB2MAG_H__ +#define __INT_CHEB2MAG_H__ + +#define d0d0d0d2cheb2magd2(n,omegar,A,sample,size,oup) dcheb2mag(n,omegar,A,sample,size,oup) + +#endif /* !__INT_CHEB2MAG_H__! */ |