双通道SAR地面振动目标特征提取方法

doi:10.3969/j.issn.1001-2400.2016.03.020

Abstract

Abstract:

The returned radar signal includes the vibrating target echo but also the strong ground clutter. However, it is difficult to detect and extract the vibrating features for SAR. For detecting and extracting the features of vibrating targets on the ground, the displaced phase center antenna (DPCA) technique is applied to suppress the ground clutter, which indicates that a time-varying envelope is induced after the DPCA processing, named the slow time envelope (STE). The energy distribution of micro-Doppler (m-D) time-frequency curve is influenced by the STE, and the integrated m-D time-frequency curve cannot be obtained. Further, an extracting method of vibrating features based on STE signatures is proposed. Finally some simulations are given for validating the theoretical derivation and the effectiveness of the proposed extracting method.

Key words: vibrating target, clutter suppression, displaced phase center antenna, slow time envelope

LIANG Ying;ZHANG Qun;YANG Qiu;GU Fufei. Features extracting method of ground vibrating targets for dual-channel SAR[J].Journal of Xidian University, 2016, 43(3): 114-119.

References

［1］ Entzminger J N. Joint STARS and GMTI: Past, Present and Future ［J］. IEEE Transactions on Aerospace and Electronic Systems, 1999, 35(2): 748-761.
［2］王金伟, 孙光才, 吴玉峰, 等. 多波段SAR系统动目标检测和参数优化设计［J］. 西安电子科技大学学报, 2014, 41(3): 63-70.
WANG Jinwei, SUN Guangcai, WU Yufeng, et al. Moving Target Detection in the Multi-band SAR System and Parameter Optimization［J］. Journal of Xidian University, 2014, 41(3): 63-70.
［3］刘奇勇, 张群, 李晓辉, 等. 双基FMCW宽带雷达微多普勒特征分析与误差因子补偿［J］. 空军工程大学学报: 自然科学版, 2014, 15(4): 46-50.
LIU Qiyong, ZHANG Qun, LI Xiaohui, et al. A Micro-Doppler Feature Analysis and Error Factor Compensation in Bistatic FMCW Wideband Radar［J］. Journal of Air Force Engineering University: Natural Science Edition, 2014, 15(4): 46-50.
［4］ DENG B, WU G Z, QIN Y L, et al. SAR/MMTI: an Extension to Conventional SAR/GMTI and a Combination of SAR and Micromotion Techniques ［C］//IET RADAR Conference(Publications No 551). Stevenage: IET, 2009: 42-45.
［5］ DENG B, WANG H Q, LI X, et al. Generalised Likelihood Ratio Test Detector for Micro-motion Targets in SAR Raw Signals［J］. IET Radar, Sonar and Navigation, 2011, 5(5): 528-535.
［6］ DENG B, WANG H Q, WU C G, et al. SAR Micromotion Target Detection Based on Gapped Sine Curves［C］//International Geoscience and Remote Sensing Symposium. Piscataway: IEEE, 2012: 3799-3802.
［7］邓彬, 吴称光, 秦玉亮, 等. 合成孔径雷达微动目标指示(SAR/MMTI)研究进展［J］. 电子学报, 2013, 41(12): 2436-2442.
DENG Bin, WU Chengguang, QIN Yuliang, et al. Advances in Synthetic Aperture Radar Micro-motion Target Indication(SAR/MMTI)［J］. Acta Electronica Sinica, 2013, 41(12): 2436-2442.
［8］ SPARR T, KRANE B. Micro-Doppler Analysis of Vibrating Targets in SAR［J］. IEE Proceedings-Radar, Sonar and Navigation, 2003, 150 (4): 277-283.
［9］ RUEGG M, MEIER E, NUESCH D. Vibration and Rotation in Millimeter-wave SAR［J］. IEEE Transactions on Geoscience and Remote Sensing, 2007, 45(2): 293-304.
［10］ CLEMENTE C, SORAGHAN J J. Vibrating Target Micro-Doppler Signature in Bistatic SAR with a Fixed Receiver［J］. IEEE Transactions on Geoscience and Remote Sensing, 2012, 50(8): 3219-3227.
［11］ ZHAO G H, FU Y W, NIE L, et al. Imaging and Micro-Doppler Analysis of Vibrating Target in MIMO SAR［J］. IET Radar, Sonar and Navigation, 2014, 150(4): 277-283.
［12］ ZHANG W, TONG C, ZHANG Q, et al. Extraction of Vibrating Features with Dual-channel Fixed-receiver Bistatic SAR［J］. IEEE Geoscience and Remote Sensing Letters, 2012, 9(3): 507-511.
［13］刘向阳, 廖桂生, 杨志伟, 等. 机载多通道雷达DPCA误差补偿及稳健的杂波抑制［J］. 电子学报, 2009, 37(9): 1982-1988.
LIU Xiangyang, LIAO Guisheng, YANG Zhiwei, et al. DPCA Error Compensation and Robust Clutter Suppression for Multi-Channel Airborne Radar［J］. Acta Electronica Sinica, 2009, 37(9): 1982-1988.

[1]	LIANG Zhuang,WEN Liwu,DING Jinshan. Improved SVD-FRFT sea clutter suppression method [J]. Journal of Xidian University, 2021, 48(2): 55-63.
[2]	DUAN Chongdi,HAN Chaolei,YANG Zhiwei,ZHANG Qingjun. Inshore ambiguity clutter suppression method aided by clutter classification [J]. Journal of Xidian University, 2021, 48(2): 64-71.
[3]	WANG Hongyan,QIAO Huijiao,PEI Bingnan. Joint robust design of the space-time code and receive filter for multiple-input multiple-output radar [J]. Journal of Xidian University, 2019, 46(2): 69-77.
[4]	LIN Chenchen;HUANG Puming;WANG Weiwei;LI Yu. Range ambiguous clutter suppression for the SAR/GMTI system based on the frequency diverse array [J]. Journal of Xidian University, 2017, 44(5): 121-126.
[5]	WU Xuzi;LIU Zheng;XIE Rong. New method for range-ambiguous clutter suppression in non-side-looking airborne radar [J]. Journal of Xidian University, 2017, 44(2): 1-7.
[6]	ZHOU Yan;FENG Dazheng;ZHU Guohui. Clutter pre-filtered method applied in bistatic airborne radar [J]. J4, 2015, 42(5): 68-74.
[7]	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.
[8]	WU Yong;WANG Jun;ZHANG Peichuan;CAO Yunhe. Parallel clutter suppression algorithm for passive radar in CUDA [J]. J4, 2015, 42(1): 104-111.
[9]	XIA Meng;YANG Xiaoniu. Study of three-channel spaceborne SAR-DPCA moving target detection with the slant-placed baseline [J]. J4, 2012, 39(3): 14-19+26.
[10]	LIU Tao;LU Changjie;LIAO Hui;MA Hongguang. Robust adaptive beamforming algorithm based on the eigenvector constraint for short-range clutter suppression [J]. J4, 2011, 38(6): 108-112+129.
[11]	ZHU Yan;CUI Yan-peng;ZHAO Guo-qing. Sinusoidal weighted frequency modulation jamming technique against moving target detection radar [J]. J4, 2010, 37(2): 273-278.
[12]	MENG Xiang-dong;WANG Tong;WU Jian-xin;BAO Zheng. New short-range clutter suppression approach for the non-side-looking airborne radar [J]. J4, 2009, 36(2): 245-249.
[13]	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.
[14]	HOU Qing-yu;LIU Hong-wei;BAO Zheng. New method for suppression of the clutter of the wideband target recognition radar [J]. J4, 2008, 35(5): 769-773.
[15]	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.

Features extracting method of ground vibrating targets for dual-channel SAR

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Metrics

Comments

Recommended 10