{"title":"ISAR图像中距离变化相位误差的最小熵自动聚焦校正","authors":"J. Kantor","doi":"10.1109/RADAR42522.2020.9114769","DOIUrl":null,"url":null,"abstract":"In this article, we present an ISAR autofocus algorithm that compensates for range-varying phase errors which can degrade ISAR imagery formed with an unknown rotation rate. Our algorithm is non-parametric and is capable of dealing with a non-constant rotation rate. The algorithm described is based on optimizing image focus by minimizing the image entropy.","PeriodicalId":125006,"journal":{"name":"2020 IEEE International Radar Conference (RADAR)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Minimum Entropy Autofocus Correction of Range-Varying Phase Errors in ISAR Imagery\",\"authors\":\"J. Kantor\",\"doi\":\"10.1109/RADAR42522.2020.9114769\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this article, we present an ISAR autofocus algorithm that compensates for range-varying phase errors which can degrade ISAR imagery formed with an unknown rotation rate. Our algorithm is non-parametric and is capable of dealing with a non-constant rotation rate. The algorithm described is based on optimizing image focus by minimizing the image entropy.\",\"PeriodicalId\":125006,\"journal\":{\"name\":\"2020 IEEE International Radar Conference (RADAR)\",\"volume\":\"51 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2020 IEEE International Radar Conference (RADAR)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/RADAR42522.2020.9114769\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 IEEE International Radar Conference (RADAR)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/RADAR42522.2020.9114769","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Minimum Entropy Autofocus Correction of Range-Varying Phase Errors in ISAR Imagery
In this article, we present an ISAR autofocus algorithm that compensates for range-varying phase errors which can degrade ISAR imagery formed with an unknown rotation rate. Our algorithm is non-parametric and is capable of dealing with a non-constant rotation rate. The algorithm described is based on optimizing image focus by minimizing the image entropy.