| 基于原始数据的SAR-GMTI通道均衡方法 |
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| 引用本文： | 钱江,吕孝雷,李凉海,杨敏,邢孟道. 基于原始数据的SAR-GMTI通道均衡方法[J]. 光电工程, 2011, 38(4): 95-102. DOI: 10.3969/j.issn.1003-501X.2011.04.017 |
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| 作者姓名： | 钱江 吕孝雷 李凉海 杨敏 邢孟道 |
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| 作者单位： | 钱江,吕孝雷,邢孟道,QIAN Jiang,L(U) Xiao-lei,XING Meng-dao(西安电子科技大学,雷达信号处理国家重点实验室,西安,710071);李凉海,LI Liang-hai(中国航天科技集团第七0四所,北京,100076);杨敏,YANG Min(总装驻华县地区军代室,西安,710068) |
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| 基金项目： | 自然科学基金重大资助项目，武器装备预研基金项目 |
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| 摘 要： | 本文研究多孔径合成孔径雷达(SAR)通道间的失配问题,提出了一种在两个SAR原始数据域进行两步滤波的通道均衡方法.针对天线波束方向图差异进行距离多普勒域上的幅相滤波,在距离频域方位时域进行的幅相滤波针对的是频率响应差异.在第一步滤波中,为消除通道间的确定性差异,对高相干性区域构造一个自适应滤波器,对噪声区域则采用非自适...
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| 关 键 词： | 通道均衡 通道失配误差 SAR地面运动目标检测(SAR-GMTI) 自适应滤波器 |
Raw-echo-based Channel Balancing Algorithm for SAR-GMTI |
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| QIAN Jiang,L Xiao-lei,LI Liang-hai,YANG Min,XING Meng-dao. Raw-echo-based Channel Balancing Algorithm for SAR-GMTI[J]. Opto-Electronic Engineering, 2011, 38(4): 95-102. DOI: 10.3969/j.issn.1003-501X.2011.04.017 |
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| Authors: | QIAN Jiang L Xiao-lei LI Liang-hai YANG Min XING Meng-dao |
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| Affiliation: | QIAN Jiang 1,Lü Xiao-lei 1,LI Liang-hai 2,YANG Min 3,XING Meng-dao 1(1.National Lab of Radar Signal Processing,Xidian University,Xi'an 710071,China,2.The 704th Institute,China Aerospace Science and Technology Corporation,Beijing 100076,3.The Military Representative Office of the General Equipment Department in Hua Country,Xi'an 710068,China) |
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| Abstract: | The channel mismatch problem was investigated in multi-aperture Synthetic Aperture Radar(SAR).A channel balancing technique based on the two-stage filters in the different raw data domains was presented.The amplitude and phase filter in the range Doppler domain corresponds to the antenna beam pattern difference,and the filter in the range frequency azimuth time domain corresponds to the frequency response difference.In the first stage filtering process,we constructed an adaptive filter in the region with hi... |
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| Keywords: | channel balancing channel mismatch error synthetic aperture radar ground moving target indicator(SAR-GMTI) adaptive filter |
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