Filters the input sequence X using the IFIR filter specified by IFIR Coefficients as designed by the FIR Narrowband Coefficients VI. Details
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X is the input signal to be filtered. | ||||||||||||||||||||
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IFIR Coefficients is a cluster that contains IFIR coefficients.
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Filtered X is the output array of filtered samples. | ||||||||||||||||||||
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error returns any error or warning from the VI. Refer to Signal Processing Error Codes for more information about these conditions. |
The overall filter is a linear-phase FIR filter. The delay for this filter is
,
where
You can design narrowband FIR filters using the FIR Narrowband Coefficients VI, and then implement the filtering using the FIR Narrowband Filter VI. The design and implementation are separate operations because many narrowband filters require long design times, whereas the actual filtering is very fast and efficient. Keep this in mind when creating your narrowband filtering diagrams.