Chip code manipulation for interference rejection in DS/SS systems

Author

Comley, V.E. ; Hill, P.C.J. ; Barfoot, R.D.

Author_Institution

R. Mil. Coll. of Sci., Swindon, UK

fYear

1988

Firstpage

955

Abstract

Novel methods for rejecting narrowband interference and jamming in direct sequence/spread spectrum (DS/SS) systems are reported. The proposed techniques, essentially based on digital transmission code schemes, are applied here to the chip code sequence. The authors specifically consider the use of simple digital filtering as in pseudorandom systems and also code-sequence interleaving in order to generate the required spectral nulls. Computer simulated power-spectrum density function results are presented, and these suggest that chip-code interleaving is very promising.<>

Keywords

codes; filtering and prediction theory; interference suppression; jamming; spread spectrum communication; DS/SS systems; chip code sequence; code-sequence interleaving; computer simulation; digital filtering; digital transmission; direct sequence spread spectrum systems; interference rejection; jamming; narrowband interference; power-spectrum density function; pseudorandom systems; spectral nulls; Computational modeling; Computer simulation; Density functional theory; Digital filters; Filtering; Interference; Interleaved codes; Jamming; Narrowband; Spread spectrum communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference, 1988. MILCOM 88, Conference record. 21st Century Military Communications - What's Possible? 1988 IEEE

Conference_Location

San Diego, CA, USA

Type

conf

DOI

10.1109/MILCOM.1988.13504

Filename

13504