An Elevation Cosine Derivation Based Updating STAP Method for Non-Sidelooking Uniform Linear Array

Abstract:

The clutter distribution of airborne radar with non-sidelooking uniform linear array antennas varies with ranges and interference in different range gates are not independent identically distributed vectors, so the performance of statistical STAP methods degrade heavily. In this paper, the range dependency problem is studied and a clutter nonstationarity reducing method is proposed. This method involves in the pre-processing of elevation cosine based vector extending and subsequently statistical STAP technique. Simulation results show the proposed method can reduce the clutter dispersion significantly and outperform conventional compensation methods.

• Periodical: Applied Mechanics and Materials (Volumes 556-562)
• Pages: 3662-3665
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.556-562.3662
• Online since: May 2014
• Authors: Xing Hui Chen*, Shi Qiao Gao
• Keywords: Clutter Suppression, Derivation Based Updating, Non-Sidelooking Array, Space Time Adaptive Processing

References

[1] Luo Shou-gui, Jin Lin. Development Trend Analysis on the Airborne Early Warning Radar [J]. Modern Radar. 2008, 30(12): 1~5.

[2] Duan Ke-qin, Xie Wen-chong, Wang Yong-liang. A Robust Clutter Suppression Method for Airborne Radar with Conformal Antennas Array[J]. Acta Electronica Sinica. 2011, 39(6): 1321~1326.

DOI: 10.1109/icosp.2010.5655980

[3] Himed B, Michels J H, Zhang Y H. Bistatic STAP performance analysis in Radar application[C]. Proceedings of the IEEE Radar Conference. 2011: 198~203.

DOI: 10.1109/nrc.2001.922977

[4] Melvin W L, Callahan M J, Wicks M C. Adaptive clutter cancellation in bisataic radar [J]. Conference on Signals, Systems and Computers, 2000: 1125~1130.

DOI: 10.1109/acssc.2000.910690

[5] Borsari G K. Mitigating effects on STAP processing caused by an inclined array [C]. Proceedings of IEEE Radar Conference. 1998: 135~140.

DOI: 10.1109/nrc.1998.677990

[6] Himed B, Zhang Y H, Hajjari A. STAP with angle-Doppler compensation for bisatic airborne radar [C]. Proceedings of IEEE Radar Conference. 2002: 311~317.

DOI: 10.1109/nrc.2002.999737

[7] Melvin W L, Himed B, Davis M E. Doubly adaptive bistatic clutter filtering [C]. Proceedings of IEEE Radar Conference. 2003: 171~178.

DOI: 10.1109/nrc.2003.1203398

[8] Melvin W L, Davis M E. Adaptive cancellation method for geometry-induced nonstationary bistatic clutter environments [J]. IEEE Transactions on Aerospace and Electronic System, 2007, 43(2): 651~672.

DOI: 10.1109/taes.2007.4285360

[9] Kogon S M and Zatman M A. Bistatic STAP for airborne radar systems[C]. In Proceedings of IEEE SAM 2000, 2000: 18~23.

[10] Zatmam M. Circular array STAP [J]. IEEE Transactions on Aerospace and Electronic Systems. 2000, 36(2)：510~517.

DOI: 10.1109/7.845235

[11] Klemm R. Space-time adaptive processing: principle and application [M]. London: Institution of Electrical Engineers, 2002: 69~115.