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

fYear

1991

fDate

20-23 Oct. 1991

Firstpage

345

Lastpage

348

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/GAAS.1991.172710

Filename

172710