Title :
Wave digital filters boost DSP applications
Author_Institution :
Dept. of Eng., Warwick Univ., Coventry, UK
fDate :
7/1/1992 12:00:00 AM
Abstract :
Wave digital filters (WDFs), digital filters that are derived by mathematical transformations from passive analog circuits, are discussed. Design and implementation techniques of WDFs are described, and it is shown that the most flexible WDF structure is that derived from the analog lattice network. The use of WDFs in traditional frequency-selective applications, transmultiplexing, interpolators and decimators (i.e. circuits that increase or decrease, respectively), the sampling rate, and image processing applications are also discussed.<>
Keywords :
network synthesis; picture processing; wave digital filters; DSP applications; WDF structure; analog lattice network; frequency-selective applications; image processing applications; sampling rate; Application software; Difference equations; Digital filters; Digital signal processing; Digital signal processing chips; Filtering; Lattices; Microwave filters; Transfer functions; Very large scale integration;
Journal_Title :
Circuits and Devices Magazine, IEEE
