High-speed gallium arsenide transversal filter circuit for clutter rejection systems

Spencer W. White; Rafael J. Betancourt-Zamora

doi:10.1117/12.21016

1 October 1990 High-speed gallium arsenide transversal filter circuit for clutter rejection systems

Spencer W. White, Rafael J. Betancourt-Zamora

Proceedings Volume 1291, Optical and Digital Gallium Arsenide Technologies for Signal Processing Applications; (1990) https://doi.org/10.1117/12.21016
Event: 1990 Technical Symposium on Optics, Electro-Optics, and Sensors, 1990, Orlando, FL, United States

Abstract

A high-speed GaAs transversal filter IC has been developed that contains in excess of 41,000 transistors which implements a finite impulse response filter for IR data stream SNR (S/N) enhancement in clutter rejection systems. The circuit contains an address controller in addition to a multiply/accumulate processor for interfacing with external memory and a register file for storing progammable filter coefficients (tap weights). Very-high-speed operation, as shown by a predicted clock rate of 160 MHz, is obtained through the utilization of a pipelined architecture and an advanced GaAs processing technology. The high-performance characteristics of this circuit permit it to be applied as a single serial processor to systems normally requiring parallel processing techniques.

Citation Download Citation

Spencer W. White and Rafael J. Betancourt-Zamora "High-speed gallium arsenide transversal filter circuit for clutter rejection systems", Proc. SPIE 1291, Optical and Digital Gallium Arsenide Technologies for Signal Processing Applications, (1 October 1990); https://doi.org/10.1117/12.21016

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