Title :
A digital ASIC implementation of a video filter for synthetic aperture radar
Author :
Remund, B.L. ; Chow, J. ; Salinas, J.
Author_Institution :
Sandia Nat. Lab., Albuquerque, NM, USA
Abstract :
Two GaAs ASICs have been designed and implemented for a synthetic aperture radar which eliminate the DC bias in the sampled video data and increase the signal to noise ratio by summing the data across consecutive bursts. The high-pass filter and presummer ASICs process data at a maximum sample rate of 170 MHz and 125 MHz respectively. The chips are fully ECL and TTL compatible. The high-pass filter if packaged in a standard 132-pin ceramic package, while the presummer is packaged in a standard 196-pin ceramic package. The presummer has been successfully tested in a prototype synthetic aperture radar.<>
Keywords :
III-V semiconductors; application specific integrated circuits; digital filters; digital integrated circuits; gallium arsenide; high-pass filters; radar equipment; video equipment; video signals; 125 MHz; 170 MHz; DC bias elimination; ECL compatible; GaAs; SAR; TTL compatible; ceramic package; digital ASIC implementation; high-pass filter; presummer; sampled video data; synthetic aperture radar; video filter; Application specific integrated circuits; Ceramics; Digital filters; Hardware; Layout; Packaging; Radar imaging; Signal to noise ratio; Synthetic aperture radar; Testing;
Conference_Titel :
Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 1991. Technical Digest 1991., 13th Annual
Conference_Location :
Monterey, CA, USA
Print_ISBN :
0-7803-0196-X
DOI :
10.1109/GAAS.1991.172710
