Functional Processing of Delta-sigma Bit-stream

This book discusses non-conventional digital signal processing based on direct processing of delta-sigma modulated bit-stream. The main attributes of low-pass delta-sigma analog-to-digital converters are: simple and inexpensive design, robustness of design to component tolerances, low-power consumption, high input impedance, high resolution (more than 20 bits) and possibility of direct arithmetic operation on its bit-stream. The author presents a number of theoretical and simulation results related to newly proposed linear and non-linear circuits such as delta-sigma adders, delta-sigma rectifiers, delta-sigma RMS and AGC circuits, delta-sigma frequency deviation meters, etc. The proposed circuits are not application limited and can be used in instrumentation, sensor application, bio-medical application, communications, etc.

• Presents novel linear and nonlinear circuits for direct processing of delta-sigma modulated bit-stream;
• The proposed circuits are supported by theoretical and simulation results;
• Recommends potential applications of the proposed circuits, and proposes ideas for further investigation.

Dr. Djuro G. Zrilic received his M.Sc. in Digital Communications at the University of Ljubljana, Slovenia, and Ph.D. in Digital Communications at the University of Belgrade, Serbia. Previously he worked as a R&D Engineer at ISKRA and Joseph Stephan Institute, Ljubljana, Slovenia. While in USA, he was visiting professor at the University of California, Davis, and Boston University, MA. He worked at Analogic Corporation as an R&D Engineer, Peabody, MA. Since 1994 he was involved in joint projects between New Mexico Highlands University, University of New Mexico, and New Mexico State University. In 2012 he was on sabbatical at University of Texas at San Antonio. Following retirement as a tenured professor at New Mexico Highlands University, he has continued his research activities at the University of New Mexico. He has received several awards, including New Mexico Inventor of the Year Awards; citation in the book Who’s Who of American Inventors; Director of NASA Center for Autonomous Control Engineering at NMHU; and is an Honorary Senior Life Member of IEEE. He has co-chaired several international conferences. He has published five books, numerous journal and international conference papers. He has been associate editor of three international journals and has eight US patents. He was co-founder of the IEEE in Yugoslavia, has been a member of IEEE since 1974 and senior member since 1986.