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filter_impulse (MathScript RT Module Function)

LabVIEW 2012 MathScript RT Module Help

Edition Date: June 2012

Part Number: 373123C-01

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Owning Class: filter implementation

Requires: MathScript RT Module


[bz, az] = filter_impulse(bs, as)

[bz, az] = filter_impulse(bs, as, fs)

[bz, az] = filter_impulse(bs, as, fs, tol)

Legacy Name: impinvar


Applies a digital filter whose impulse response equals the impulse response of an analog filter.



Name Description
bs Specifies the numerator coefficients of the analog filter. bs is a vector.
as Specifies the denominator coefficients of the analog filter. as is a vector.
fs Specifies the sampling rate. The default is 1.
tol Specifies the tolerance used to classify the poles. The default is 0.


Name Description
bz Returns the numerator coefficients of the digital filter. bz is a vector.
az Returns the denominator coefficients of the digital filter. az is a vector.


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


[b, a] = filter_impulse([1 2 3], [1 5 9 7 2])

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