decimate (MathScript Function) (Windows, Not in Base Package)

LabVIEW 8.5 Help
August 2007

NI Part Number:
371361D-01

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Member of the resampling class.

Syntax

c = decimate(a, b)

c = decimate(a, b, n)

c = decimate(a, b, option)

c = decimate(a, b, n, option)

Uses a type 1 Chebyshev filter to resample a signal.

Name

Description

Specifies the original signal. a is a real vector.

Specifies the new sampling rate. b is a positive real number.

Specifies the order of the type 1 Chebyshev filter to use. n is a positive integer.

option

Specifies the type of filter to use. option is a string that accepts the following values.

'FIR'	Directs LabVIEW to use an FIR filter to perform the resampling.
'IIR'	Directs LabVIEW to use an IIR filter to perform the resampling.

Name	Description
c	Returns a resampled version of a at 1/b times the original rate. The length of c is 1/b times the length of a. c is a real or complex vector.

A = [1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7];
B = 2;
N = 3;
C = decimate(A, B, N)