In addition, let I be the set of positive integers, J the set of non-negative integers, I(n) C I , be such that if k E l(n) then k < n, J(n) C J , be such that if k E J(n) then k < n. W(n) C 0 n is such that if K E W(n), where K = [k l9 k 2

Introduction The field of Digital Signal Processing grew out of the flexibility afforded by the use of digital computers in implementing signal processing algorithms and systems. It has since broadened into the use of a variety of both digital and analog technologies, spanning a broad range of applications, bandwidths, and realizations. The Digital Signal Processing Group carries out research on algorithms for signal processing and their applications. Current application areas of interest include signal enhancement and detection; speech, audio and underwater acoustic signal processing; and signal processing and coding for wireless and broadband multiuser/multimedia communication networks.

The field of Digital Signal Processing grew out of the flexibility afforded by the use of digital computers in implementing signal processing algorithms and systems. It has since broadened into the use of a variety of both digital and analog technologies, spanning a broad range of applications, bandwidths, and realizations. The Digital Signal Processing Group carries out research on algorithms for signal processing and their applications. Current application areas of interest include signal enhancement and active noise cancellation; speech, audio and underwater acoustic signal processing; advanced beamforming for radar and sonar systems; and signal processing and coding for wireless and broadband multiuser/multimedia communication networks.