IIR Cascade Filter (Not in Base Package)

Filters the input sequence X using the cascade form of the IIR filter specified by the IIR Filter Cluster. Details

X is the input array of samples to be filtered.
IIR Filter Cluster contains the cascade form of IIR filter coefficients. It contains three elements: filter structure, Reverse Coefficients, and Forward Coefficients. This cluster is the output from one of the IIR coefficient design VIs: Butterworth Coefficients, Bessel Coefficients, Chebyshev Coefficients, Elliptic Coefficients, or Inv Chebyshev Coefficients.
filter structure selects IIR second-order or IIR fourth-order filter stages.
Reverse Coefficientsis the reverse coefficients of the IIR cascade filter.
Forward Coefficients is the forward coefficients of the IIR cascade filter.
init/cont controls the initialization of the internal states. When init/cont is FALSE (default), the internal states are initialized to zero. When init/cont is TRUE, the internal filter states are initialized to the final filter states from the previous call to this instance of this VI. To filter a large data sequence that has been split into smaller blocks, set this control to FALSE for the first block and to TRUE for continuous filtering of all remaining blocks.
Filtered X is the output array of filtered samples.
error returns any error or warning from the VI. Refer to Signal Processing Error Codes for more information about these conditions.

IIR Cascade Filter Details

This IIR implementation is called cascade because it is a cascade of second- or fourth-order filter stages. The output of one filter stage is the input to the next filter stage for all Ns filter stages.