Analog signal processing for broadband antijam protection [SAW delay difference device]

Author

Minter, T. ; Hankamer, M. ; Pendley, M. ; Ward, R.

Author_Institution

Lockheed Missiles & Space Co. Inc., Austin, TX, USA

fYear

1990

fDate

30 Sep-3 Oct 1990

Firstpage

1153

Abstract

The cochannel interference reduction system (CIRS), which removes spatially offset, interfering, cochannel signals from the bandwidth of a desired signal, is described. The key technology used in the analog signal processing is the SAW (surface acoustic wave) DDD (delay difference device). The system´s fundamentals of operation, mode of operation, angle-of-arrival (AOA) determination mode, hardware, and software are reviewed. Examples of the nulling capabilities of CIRS, a description of a method for determining the AOA of HF-band signals, and results from a flight test demonstration are presented

Keywords

interference suppression; jamming; radiocommunication; signal processing; signal processing equipment; surface acoustic wave devices; HF-band signals; SAW delay difference device; analog signal processing; angle-of-arrival; broadband antijam protection; cochannel interference reduction system; flight test demonstration; hardware; mode of operation; nulling capabilities; software; Acoustic signal processing; Acoustic waves; Bandwidth; Hardware; Interchannel interference; Propagation delay; Protection; Signal processing; Surface acoustic wave devices; Surface acoustic waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference, 1990. MILCOM '90, Conference Record, A New Era. 1990 IEEE

Conference_Location

Monterey, CA

Type

conf

DOI

10.1109/MILCOM.1990.117593

Filename

117593