A Compensating Approch for Signal Distortion Introduced by STAP

Space time adaptive processing (STAP) has the potential to cancel both narrowband interferers and wideband interferers in GPS interference mitigation, for its many freedom degrees. But it dose not have a uniform frequency response across the operating band due to the architecture of STAP. It may int...

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Bibliographic Details
Published in2006 International Conference on Communication Technology pp. 1 - 4
Main Authors Li Shuangxun, Cheng Zhu, Huangfu Kan, Xue Hongyin
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2006
Subjects
Distortion
Finite impulse response filter
Frequency response
Global Positioning System
Interference
Least squares methods
Marine vehicles
Shipbuilding industry
Signal processing
Signal to noise ratio
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Summary:Space time adaptive processing (STAP) has the potential to cancel both narrowband interferers and wideband interferers in GPS interference mitigation, for its many freedom degrees. But it dose not have a uniform frequency response across the operating band due to the architecture of STAP. It may introduce a distortion of the desired GPS signal. In this paper, the GPS signal distortion introduced by STAP is investigated in terms of the cross-correlation between the array output and a desired signal. And a compensating approach for the signal distortion is proposed based on the deterministic least square inverse filter. We also derive the solution form of the inverse filter. Simulation result shows that the compensating approach is feasible and efficient.
ISBN:9781424408009
1424408008
DOI:10.1109/ICCT.2006.341699