Design of wave digital filters with prescribed magnitude and phase requirements

Investigates the design of digital filters, with arbitrarily specified magnitude and phase (or delay) characteristics. We shall be looking in particular at Wave Digital Filters because of their known superior performance in respect of round-off noise and coefficient quantization error. The emphasis in this paper is the preservation of filter structure and the use of optimization to find a suitable set of multiplier coefficient values. Results are given to illustrate the current progress in this research