Is there a complex coefficient IIR filter VI?

[Mark_A._Yoder]

IIR filter VI will take a complex signal in, but it doesn't look (or act) like it takes complex coefficients.

Is there an IIR filter VI that does use complex coefficients?

--Mark

[Jarrod_S.]

The FIR and IIR filter VIs only accept real-valued inputs. When you wire an array of complex numbers into either of these VIs, or any other VI that accepts only double-precision numeric inputs for that matter, the complex values are simply coerced to doubles by taking the real component.

LabVIEW doesn't have any FIR or IIR filters capable of handling complex values directly.