Complex Cascade Digital Filters
Kenneth W. Martin · 2019
Complex filters are filters that process two signals often denoted the real and imaginary signal components. This publication deals with how to realize digital complex filters using cascade architectures. A number of design techniques to improve numerical inaccuracies are presented. The design algorithms have been implemented using Matlab; methods to overcome Matlab limitations when manipulating complex systems are described. A number of examples are presented. The sensitivities of the filter realizations are investigated using Monte Carlo analysis.