Space-frequency adaptive processing (SFAP) for RFI mitigation in spread spectrum receivers

Author

Gupta, I.J. ; Moore, T.D.

Author_Institution

Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA

Volume

4

fYear

2003

fDate

22-27 June 2003

Firstpage

172

Abstract

In this paper, the performance of a space-frequency adaptive processor receiving a spread spectrum like communications signal in strong RFI environment is studied. The interfering scenario consists of wideband as well as narrowband jammers. It is shown that for these types of interference scenarios, one can improve the performance of narrowband SFAP by windowing the time domain samples before transforming the samples to the frequency domain. It is also demonstrated that one needs to carry out some sample overlapping in SFAP to achieve the optimum performance.

Keywords

adaptive antenna arrays; adaptive signal processing; interference suppression; jamming; spread spectrum communication; RFI mitigation; constraint minimization; discrete Fourier transform; interference suppression; narrowband jammers; optimum performance; sample overlapping; seven-element antenna array; space-frequency adaptive processor; spread spectrum receivers; wideband jammers; Adaptive arrays; Antenna arrays; Bandwidth; Narrowband; Radiofrequency interference; Receivers; Receiving antennas; Signal processing; Spread spectrum communication; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2003. IEEE

Conference_Location

Columbus, OH, USA

Print_ISBN

0-7803-7846-6

Type

conf

DOI

10.1109/APS.2003.1220148

Filename

1220148