Major Bug Fixes for the Signal Processing Toolbox 6.1

Exporting matrix variables from FDATool to text files

Exporting a state-space or second-order sections filter from FDATool to a text file now exports the all columns of the filter matrix.

The buttord, cheb1ord, cheb2ord, and ellipord functions return correct filter order

When designing analog bandstop filters, the order estimation functions ( buttord, cheb1ord, cheb2ord, and ellipord) now return the filter order as a real, not a complex, number.

The impz and stepz functions now support complex filters

The impz and stepz functions now support complex filters using subplots. If the response is complex, the real component is displayed in the first subplot and the imaginary component is displayed in the second subplot.