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遥感技术与应用  2003, Vol. 18 Issue (3): 164-168    DOI: 10.11873/j.issn.1004-0323.2003.3.164
图像处理     
SAR有源编码辐射定标技术研究
纪慧波,王一丁,洪 峻,吴一戎
(中国科学院电子学研究所,北京 100080)
Study on Active Coded Radiometric Calibration Technique of SAR
JI Hui-Bo, WANG Yi-ding, HONG Jun, WU Yi-rong
(Institute of Electronics,Chinese Academy of Sciences,Beijing100080,China)
 全文: PDF 
摘要:

在对SAR有源编码辐射定标技术的研究中,首先开展了地物杂波信号对SAR辐射定标精度影响的研究,推出了受地物杂波信号影响的系统总体传递函数的误差公式,其次分析了有源编码辐射定标技术抑制地物杂波的机理和信号处理流程。在不同地物杂波分布情况下,完成了SAR有源编码辐射定标技术的仿真实验。实验结果证明SAR有源编码定标技术能够有效地抑制地物杂波信号的影响,改善SAR辐射定标的精度,特别是提高了定标场地选择的灵活性。

关键词: 编码地物杂波SAR辐射定标    
Abstract:

This paper studies Active Coded Radiometric Calibration Technique (ACRCT) of SAR. ACRCT has been widely studied as SAR calibration technique. In some calibration sites, background is complicated, which will affect the radiometric calibration precision. The influence of background clutter
signal to the precision of radiometric calibration is analyzed, and an equation to calculate system transfer function error is proposed. With this equation, some simulation experiments are carried out. The principle and signal processing flowchart of ACRCT are studied in detail. Two clutter models are built and based on them, ACRCT simulation experiments are carried out. Experiment results testify that ACRCT can effectively restrain the influence of background clutter signal and improve the precision of radiometric calibration of SAR, especially enhance flexibility of choosing calibration field.

Key words: Coded    Background clutter    SAR    Radiometric calibration  
收稿日期: 2003-01-02 出版日期: 2011-11-23
:  TP 75  
作者简介: 纪慧波(1978-),男,硕士生,研究方向为信号与信息处理。
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引用本文:

纪慧波,王一丁,洪 峻,吴一戎. SAR有源编码辐射定标技术研究[J]. 遥感技术与应用, 2003, 18(3): 164-168.

JI Hui-Bo, WANG Yi-ding, HONG Jun, WU Yi-rong. Study on Active Coded Radiometric Calibration Technique of SAR. Remote Sensing Technology and Application, 2003, 18(3): 164-168.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2003.3.164        http://www.rsta.ac.cn/CN/Y2003/V18/I3/164

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