NI 5441
FIR Filter Types
There are a number of built-in low-pass filters available in NI-FGEN. These filters compensate for the CIC roll-off and handle scaling issues. NI-FGEN calculates the coefficients for each filter which can then be queried with the niFgen Get FIR Filter Coefficients VI or the niFgen_GetFIRFilterCoefficients function. Because the coefficients are scaled for unity-gain, the filters may overflow if transients (such as step response) are presented at the input of the filter. Use the Filter Type property or the NIFGEN_ATTR_OSP_FIR_FILTER_TYPE attribute to set the FIR filter type. The following filters are currently available: