基于二维映射的LFM UWB 雷达动目标速度估计

Q2 Physics and Astronomy 雷达学报 Pub Date : 2012-09-17 DOI:10.3724/SP.J.1300.2012.20048

杨利民, 苏卫民

{"title":"基于二维映射的LFM UWB 雷达动目标速度估计","authors":"杨利民, 苏卫民","doi":"10.3724/SP.J.1300.2012.20048","DOIUrl":null,"url":null,"abstract":"针对线性调频超宽带雷达动目标存在的距离-多普勒耦合以及多普勒色散对测速的影响，该文采用了频率-多普勒平面的2 维映射方法。首先将接收的脉冲串回波，通过快-慢时间的2 维傅里叶变换获得相应的频率-多普勒2 维平面。然后，利用2 维映射处理，将超宽带信号映射为窄带信号，实现多普勒域能量的聚焦。最后，根据映射后的窄带信号对应的多普勒频率获得目标径向速度。该方法不但有效地解决了超宽带雷达多普勒色散对测速的影响，而且规避了由于目标沿距离维的走动引起的慢时间域不能有效的能量积累。通过速度估计值，进行运动补偿后可获得目标距离像。此外，根据相关条件，进一步推导了速度适应范围。仿真实验结果验证了该方法的有效性。","PeriodicalId":37701,"journal":{"name":"雷达学报","volume":"1 1","pages":"232-237"},"PeriodicalIF":0.0000,"publicationDate":"2012-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"基于二维映射的LFM UWB 雷达动目标速度估计\",\"authors\":\"杨利民, 苏卫民\",\"doi\":\"10.3724/SP.J.1300.2012.20048\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"针对线性调频超宽带雷达动目标存在的距离-多普勒耦合以及多普勒色散对测速的影响，该文采用了频率-多普勒平面的2 维映射方法。首先将接收的脉冲串回波，通过快-慢时间的2 维傅里叶变换获得相应的频率-多普勒2 维平面。然后，利用2 维映射处理，将超宽带信号映射为窄带信号，实现多普勒域能量的聚焦。最后，根据映射后的窄带信号对应的多普勒频率获得目标径向速度。该方法不但有效地解决了超宽带雷达多普勒色散对测速的影响，而且规避了由于目标沿距离维的走动引起的慢时间域不能有效的能量积累。通过速度估计值，进行运动补偿后可获得目标距离像。此外，根据相关条件，进一步推导了速度适应范围。仿真实验结果验证了该方法的有效性。\",\"PeriodicalId\":37701,\"journal\":{\"name\":\"雷达学报\",\"volume\":\"1 1\",\"pages\":\"232-237\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-09-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"雷达学报\",\"FirstCategoryId\":\"1093\",\"ListUrlMain\":\"https://doi.org/10.3724/SP.J.1300.2012.20048\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Physics and Astronomy\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"雷达学报","FirstCategoryId":"1093","ListUrlMain":"https://doi.org/10.3724/SP.J.1300.2012.20048","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Physics and Astronomy","Score":null,"Total":0}

引用次数: 0

摘要

针对线性调频超宽带雷达动目标存在的距离-多普勒耦合以及多普勒色散对测速的影响，该文采用了频率-多普勒平面的2 维映射方法。首先将接收的脉冲串回波，通过快-慢时间的2 维傅里叶变换获得相应的频率-多普勒2 维平面。然后，利用2 维映射处理，将超宽带信号映射为窄带信号，实现多普勒域能量的聚焦。最后，根据映射后的窄带信号对应的多普勒频率获得目标径向速度。该方法不但有效地解决了超宽带雷达多普勒色散对测速的影响，而且规避了由于目标沿距离维的走动引起的慢时间域不能有效的能量积累。通过速度估计值，进行运动补偿后可获得目标距离像。此外，根据相关条件，进一步推导了速度适应范围。仿真实验结果验证了该方法的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

基于二维映射的LFM UWB 雷达动目标速度估计

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

雷达学报 Physics and Astronomy-Instrumentation

CiteScore

4.10

自引率

0.00%

发文量

882

期刊介绍： Journal of Radars was founded in 2012 by the Institute of Space and Astronautical Information Innovation of the Chinese Academy of Sciences (formerly the Institute of Electronics) and the China Radar Industry Association (CRIA), which is located in the high-end academic journal and academic exchange platform in the field of radar, and is committed to promoting and leading the scientific and technological development in the field of radar. The journal can publish Chinese papers and English papers, and is now a bimonthly journal. Journal of Radars focuses on theory, originality and foresight, and its scope of coverage mainly includes: radar theory and system, radar signal and data processing technology, radar imaging technology, radar identification and application technology. Journal of Radars has been included in domestic core journals and foreign Scopus, Ei and other databases, and was selected as ‘China's high-quality science and technology journals’, and ranked the first in the category of electronic technology and communication technology in the ‘Chinese Core Journals List (2023 Edition)’.