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Owning Class: filter implementation
Requires: MathScript RT Module
x = convcirc(a, b)
x = convcirc(a, b, n)
Computes the circular convolution of two input vectors.
|a||Specifies a real or complex input vector. If length(a) is greater than n, LabVIEW wraps a. If length(a) is less than n, LabVIEW pads the end of a with zeros.|
|b||Specifies a real or complex input vector. If length(b) is greater than n, LabVIEW wraps b. If length(b) is less than n, LabVIEW pads the end of b with zeros.|
|n||Specifies the size of the circular convolution. The default is length(a) + length(b) - 1.|
|x||Returns the circular convolution of a and b.|
LabVIEW computes the circular convolution using the same algorithm as the default method in the Convolution VI. However, you can use the convcirc function to set the size of the convolution whereas the Convolution VI always returns the result with a length of length(a) + length(b) - 1.
The following table lists the support characteristics of this function.
|Supported in the LabVIEW Run-Time Engine||Yes|
|Supported on RT targets||Yes|
|Suitable for bounded execution times on RT||Not characterized|
a1 = 0.1:0.1:0.4;
b1 = mirrorh(a1);
x1 = convcirc(a1,b1);
a2=[1-j, 2+2j, 3-3j, 4+4j];
b2=[5+0.5j, 4-0.4j, 3+3j, 2, 1];
x2 = convcirc(a2, b2, 4);