{"title":"长星间基线星载SAR系统姿态转向分析","authors":"Dong Yang, Hui Wang","doi":"10.23919/CISS51089.2021.9652276","DOIUrl":null,"url":null,"abstract":"Doppler steering is one of the important functions of the SAR satellite attitude and orbit control system when it is running in orbit. In order to improve the imaging effect of the SAR system, the traditional single-satellite SAR satellite conducts two-dimensional guidance through the yaw axis and pitch axis to reduce the influence of the earth's rotation on the Doppler center frequency. For the bistatic SAR system, the relative motion between the two satellites makes the analysis more complicated. Therefore, it is necessary to analyze the Doppler effect and steering law of the bistatic SAR system, providing the relevant foundation for the bistatic SAR system and multi-base formation.","PeriodicalId":318218,"journal":{"name":"2021 2nd China International SAR Symposium (CISS)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Attitude steering analysis of long inter-satellite baseline spaceborne SAR system\",\"authors\":\"Dong Yang, Hui Wang\",\"doi\":\"10.23919/CISS51089.2021.9652276\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Doppler steering is one of the important functions of the SAR satellite attitude and orbit control system when it is running in orbit. In order to improve the imaging effect of the SAR system, the traditional single-satellite SAR satellite conducts two-dimensional guidance through the yaw axis and pitch axis to reduce the influence of the earth's rotation on the Doppler center frequency. For the bistatic SAR system, the relative motion between the two satellites makes the analysis more complicated. Therefore, it is necessary to analyze the Doppler effect and steering law of the bistatic SAR system, providing the relevant foundation for the bistatic SAR system and multi-base formation.\",\"PeriodicalId\":318218,\"journal\":{\"name\":\"2021 2nd China International SAR Symposium (CISS)\",\"volume\":\"58 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-11-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2021 2nd China International SAR Symposium (CISS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.23919/CISS51089.2021.9652276\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 2nd China International SAR Symposium (CISS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.23919/CISS51089.2021.9652276","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Attitude steering analysis of long inter-satellite baseline spaceborne SAR system
Doppler steering is one of the important functions of the SAR satellite attitude and orbit control system when it is running in orbit. In order to improve the imaging effect of the SAR system, the traditional single-satellite SAR satellite conducts two-dimensional guidance through the yaw axis and pitch axis to reduce the influence of the earth's rotation on the Doppler center frequency. For the bistatic SAR system, the relative motion between the two satellites makes the analysis more complicated. Therefore, it is necessary to analyze the Doppler effect and steering law of the bistatic SAR system, providing the relevant foundation for the bistatic SAR system and multi-base formation.
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