Title :
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
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;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1220148
