Daniel E. Wahl was born in Denver, CO. He received the B.S. and M.S. degrees in electrical engineering from Colorado State University in 1981 and 1983, respectively, and the Ph.D. degree from the University of New Mexico in electrical/computer engineering in 1993.Since 1983 he has been a senior member of the technical staff at Sandia National Laboratories, Albuquerque, NM. His current interests include digital signal and image processing, synthetic-aperture radar signal processing, and SONAR array signal processing.