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Diffstat (limited to '2.3-1/src/c/signalProcessing/cheb1mag/dcheb1mags.c')
| -rw-r--r-- | 2.3-1/src/c/signalProcessing/cheb1mag/dcheb1mags.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/2.3-1/src/c/signalProcessing/cheb1mag/dcheb1mags.c b/2.3-1/src/c/signalProcessing/cheb1mag/dcheb1mags.c new file mode 100644 index 00000000..a4a459d4 --- /dev/null +++ b/2.3-1/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)); + } + } +} + |