Performance analysis of subspace projection techniques for interference excision in DSSS communications

Author

Ramineni, Raja S. ; Amin, Moeness G. ; Lindsey, Alan R.

Author_Institution

Dept. of Electr. & Comput. Eng., Villanova Univ., PA, USA

Volume

5

fYear

2000

fDate

2000

Firstpage

2825

Abstract

This paper presents the performance analysis of the interference excision techniques in direct sequence spread spectrum (DSSS) communications using orthogonal subspace projections. It is shown that this technique is sensitive to the errors in the instantaneous frequency (IF) estimate of the interference over segments of the bit period. This paper discusses the effect of two different types of errors on the receiver SINR and compares the performance of the block-wise processing to the single block projection approach

Keywords

filtering theory; frequency estimation; frequency modulation; interference suppression; jamming; radio receivers; signal processing; spread spectrum communication; DSSS communications; FM interference excision; FM jammer vector; IF estimate; block-wise processing; direct sequence spread spectrum; instantaneous frequency estimate; orthogonal subspace projections; performance; performance analysis; projection filter; receiver SINR; single block projection; Computer errors; Discrete Fourier transforms; Filters; Frequency estimation; Interference; Jamming; Performance analysis; Signal to noise ratio; Spread spectrum communication; White noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings. 2000 IEEE International Conference on

Conference_Location

Istanbul

ISSN

1520-6149

Print_ISBN

0-7803-6293-4

Type

conf

DOI

10.1109/ICASSP.2000.861101

Filename

861101