Scilab 6.1.0

Scilab Help >> Signal Processing > intdec

# intdec

Changes sampling rate of a signal

### Syntax

[y]=intdec(x,lom)

### Arguments

- x
input sampled signal

- lom
For a 1D signal this is a scalar which gives the rate change. For a 2D signal this is a 2-Vector of sampling rate changes

`lom`

=(col rate change,row rate change)- y
Output sampled signal

### Description

Changes the sampling rate of a 1D or 2D signal by the rates in lom

### Examples

Fs1 = 1000; // initial sampling frequency Fs2 = 1400; // targeted resampling frequency t1 = linspace(0, 5-1/Fs1, Fs1*5)'; t2 = linspace(0, 5-1/Fs2, Fs2*5)'; F0 = 2; // Signal frequency u1 = sin(2*%pi*F0*t1); u2 = sin(2*%pi*F0*t2); // Direct sampling at targeted frequency (as reference) u2b = intdec(u1, Fs2/Fs1); // Resampled signal clf plot(t2,u2,"b", t2,(u2b-u2)*1e13, "m"); legend("Direct highly sampled u2","Resampling_error x 1e13","in_upper_left");

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