星载双基地雷达空时二维杂波建模和特性分析

Abstract

Abstract:

This paper presents a new clutter model for bistatic spaceborne radar, which takes into account the influences of the elliptic orbits of the satellites, the curving surface of the earth, the earth rotation, the range ambiguity and the geometry of the bistatic radar system on clutter and STAP performance. Based on the model proposed in this paper, an analysis of the characteristic of ground clutter is made. Simulation results show that the space-time distribution of clutter would vary with range and time, which, along with range ambiguity would result in the performance degradation of clutter cancellation. And the GMTI is unachievable if the elements of the receive array are all mounted on one satellite due to its serious Doppler frequency ambiguity and inadequate spatial resolution, which could be resolved by mounting the elements of the receive array sparsely on many distributed small satellites.

Key words: spaceborne bistatic radar, clutter modeling, STAP, distributed small satellites

LIU Nan;ZHANG Lin-rang;YI Yu-sheng;LIU Xin. Clutter modeling and analysis for spaceborne bistatic radar[J].J4, 2009, 36(3): 390-437.

References

［1］李真芳. 分布式小卫星SAR-InSAR-GMTI的处理方法［D］. 西安: 西安电子科技大学, 2006.
Li Zhenfang. Approaches to SAR-InSAR-GMTI for Distributed Small Satellite SAR Systems ［D］. Xi'an: Xidian University, 2006.
［2］易予生, 刘昕, 刘楠, 等. 分布式小卫星SAR系统的模糊性分析［J］. 西安电子科技大学学报, 2008, 35(1): 22-26.
Yi Yusheng, Liu Xin, Liu Nan, et al. Ambiguity Analysis of the Distributed Micro-satellites SAR System ［J］. Journal of Xidian University, 2008, 35(1): 22-26.
［3］Zhang Yuhong, Himed B. Effects of Geometry on Clutter Characteristics of Bistatic Radars ［C］//Proc of IEEE Radar Conference. Honolulu: IEEE, 2003: 417-424.
［4］Himed B, Michels J H, Zhang Yuhong. Bistatic STAP Performance Analysis in Radar Applications ［C］//Proc of IEEE Radar Conference. Atlanta: IEEE, 2001: 198-203.
［5］Klemm R. Ambiguities in Bistatic STAP Radar ［C］//Proc of IEEE Radar Conference. Alexandria: IEEE, 2000: 1009-1011.
［6］王永良, 魏进武, 陈建文. 双基地机载预警雷达空时二维杂波建模及杂波特性分析［J］. 电子学报, 2001, 29(12A): 1940-1943.
Wang Yongliang, Wei Jinwu, Chen Jianwen. Modeling and Charactistics Analysis of Two Dimensional Space-time Clutter for Bistatic Airborne Early Warning Radar ［J］. ACTA Electronica Sinica, 2001, 29(12A): 1940-1943.
［7］杨凤凤, 梁甸农, 刘建平. 地球自转对分布式星载SAR-GMTI的影响［J］. 国防科技大学学报, 2006, 28(1): 90-93.
Yang Fengfeng, Liang Diannong, Liu Jianping. The Earth Rotation Effect on Distributed Spaceborne SAR-GMTI［J］. Journal of National University of Defense Technology, 2006, 28(1): 90-93.
［8］Zulch P, Davis M, Adzima I. The Earth Rotation Effect on a LEO L-Band GMTI SBR and Mitigation Strategies ［C］//Proc of IEEE Radar Conference. Philadephia: IEEE, 2004: 27-32.
［9］Pillai S U, Himed B, Li Keyong. Effect of Earth's Rotation and Range Foldover on Space Based Radar Performance ［C］//Proc of IEEE Radar Conference. Long Beach: IEEE, 2005: 137-142.
［10］南京电子技术研究所译. 星载雷达手册［M］. 北京: 电子工业出版社, 2005.
［11］王永良, 彭应宁. 空时自适应信号处理［M］. 北京: 清华大学出版社, 2000.
［12］王彤, 保铮, 廖桂生. 天基分布式雷达GMTI方法［J］. 电子学报, 2006, 34(3): 399-403.
Wang Tong, Bao Zheng, Liao Guisheng. A New GMTI Method for Space-Based Distributed Radar ［J］. ACTA Electronica Sinica, 2006, 34(3): 399-403.
［13］王万林, 廖桂生, 张光斌. 在非均匀环境下辅助通道法STAP处理的性能改善［J］. 西安电子科技大学学报, 2004, 31(5): 761-764.
Wang Wanlin, Liao Guisheng, Zhang Guangbin. Immprovement on the Performance of the Auxiliary Channel STAP in the Non-homogeneous Environment ［J］. Journal of Xidian University, 2004, 31(5): 761-764.
［14］Melvin W L, Himed B, Davis M. Doubly Adaptive Bistatic Clutter Filtering ［C］//Proc of IEEE Radar Conference. Honolulu: IEEE, 2003, 171-178.
［15］王彤, 保铮, 廖桂生, 等. 分布式小卫星雷达平台沿航向排列研究［J］. 宇航学报, 2006, 26(5): 663-667.
Wang Tong, Bao Zheng, Liao Guisheng, et al. Study of Along-track Formation for Distributed Radar Satellite ［J］. Journal of Astronautic, 2006, 26(5): 663-667.

[1]	XIE Hu;FENG Dazheng;YU Hongbo;YUAN Mingdong;NIE Weike. Fast space-time adaptive processing method by using the sparse representation [J]. J4, 2015, 42(5): 55-62.
[2]	ZHOU Yan;FENG Dazheng;ZHU Guohui. Clutter pre-filtered method applied in bistatic airborne radar [J]. J4, 2015, 42(5): 68-74.
[3]	XIANG Pingye;FENG Dazheng;ZHOU Yan;ZHU Guohui. Three dimensional space-time open-loop clutter block canceller applied to the airborne phased array radar [J]. J4, 2015, 42(3): 26-32.
[4]	LI Xueshi;XING Mengdao;SHAO Peng;SUN Guangcai;LIANG Yi;BAO Zheng. Spectrum compression space-time adaptive processing method for TOPS SAR-GMTI [J]. J4, 2015, 42(1): 1-9.
[5]	GONG Jiling;LIAO Guisheng;XU Jingwei;ZHU Shengqi. Parameter estimation based adaptive auxiliary channel receiver method [J]. J4, 2014, 41(3): 8-13+78.
[6]	LIU Cong-feng;LIAO Gui-sheng. Robust generalized inner products algorithm using diagonal loading [J]. J4, 2009, 36(4): 583-589.
[7]	MENG Xiang-dong;WU Jian-xin;WANG Tong;BAO Zheng. Clutter analysis and range-ambiguous clutter suppression for bistatic airborne radar [J]. J4, 2008, 35(6): 992-998.
[8]	YANG Zhi-wei;LIAO Gui-sheng;ZENG Cao. Blind along-track baseline estimation using radar echoes [J]. J4, 2008, 35(5): 777-780.
[9]	XU Qing1;LIAO Gui-sheng1;LIU Ying1;LIANG Jing2. 3-D baseline error estimation method for distributed small satellites [J]. J4, 2008, 35(4): 668-672.
[10]	LI Xiao-ming;FENG Da-zheng;LIU Hong-wei;LUO Ding. Space-time two-dimensional pre-filtering for clutter suppression in the phased array airborne radar [J]. J4, 2008, 35(2): 216-222.

Clutter modeling and analysis for spaceborne bistatic radar

PDF (PC)

Like

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 10

Metrics

Comments

Recommended 0