Design of recursive digital filters having specified phase and magnitude characteristics
Russell E. King, G. W. Condon · NASA Technical Reports Server (NASA) · 1972
A method for a computer-aided design of a class of optimum filters, having specifications in the frequency domain of both magnitude and phase, is described. The method, an extension to the work of Steiglitz, uses the Fletcher-Powell algorithm to minimize a weighted squared magnitude and phase criterion. Results using the algorithm for the design of filters having specified phase as well as specified magnitude and phase compromise are presented.