Motion error parameter estimation based on vortex echo data

IF 1.4 4区地球科学 Q3 IMAGING SCIENCE & PHOTOGRAPHIC TECHNOLOGY

Remote Sensing Letters Pub Date : 2023-09-30 DOI:10.1080/2150704x.2023.2264492

Xiao Tang, Chenlu Li, Yongxing Du, Ling Qin, Baoshan Li

引用次数: 0

Abstract

ABSTRACTThe carrier platform in synthetic aperture radar (SAR) imaging may deviate from the correct trajectory due to end currents in the atmosphere, causing motion errors and ultimately degrading the quality of the radar image. Techniques for motion compensation can reduce the impact of motion errors on the results of the imaging process. Motion error parameters are necessary for motion compensation algorithms. In this paper, the line of sight (LOS) error of the carrier platform is estimated based on the vortex-selected SAR imaging system by analysing the vortex SAR echo data using the relationship between the Bessel magnitude term, the phase term, and the motion error. The validity of the method is verified through numerical simulations.KEYWORDS: Electromagnetic vortexmotion error estimationSAR imaging Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingNational Natural Science Foundation of China (61961033).

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基于涡回波数据的运动误差参数估计

摘要在合成孔径雷达(SAR)成像中，由于大气中末端电流的存在，载体平台可能会偏离正确轨迹，产生运动误差，最终降低雷达成像质量。运动补偿技术可以减少运动误差对成像结果的影响。运动误差参数是运动补偿算法的必要参数。基于涡选SAR成像系统，利用涡选SAR回波数据的贝塞尔幅度项、相位项和运动误差之间的关系，估计了涡选SAR成像系统中舰载机平台的瞄准线误差。通过数值仿真验证了该方法的有效性。关键词:电磁涡动误差估计sar成像披露声明作者未报告潜在利益冲突。国家自然科学基金项目(61961033)。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Remote Sensing Letters REMOTE SENSING-IMAGING SCIENCE & PHOTOGRAPHIC TECHNOLOGY

CiteScore

4.10

自引率

4.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Remote Sensing Letters is a peer-reviewed international journal committed to the rapid publication of articles advancing the science and technology of remote sensing as well as its applications. The journal originates from a successful section, of the same name, contained in the International Journal of Remote Sensing from 1983 –2009. Articles may address any aspect of remote sensing of relevance to the journal’s readership, including – but not limited to – developments in sensor technology, advances in image processing and Earth-orientated applications, whether terrestrial, oceanic or atmospheric. Articles should make a positive impact on the subject by either contributing new and original information or through provision of theoretical, methodological or commentary material that acts to strengthen the subject.