{"title":"Application of beam domain STAP techniques to space-based radars","authors":"Yuhong Zhang, A. Hajjari, L. Adzima, B. Himed","doi":"10.1109/SSST.2004.1295630","DOIUrl":null,"url":null,"abstract":"This paper deals with beam-based space-time adaptive processing (STAP) algorithms for a low-earth-orbit (LEO) space-based radar (SBR). The performance of a subarray-based joint-domain-localized (JDL) algorithm is first examined for different parameters. Then, a combined beam-domain STAP algorithm approach that combines JDL with difference (/spl Delta/) beams is presented. It is shown that the combined JDL-/spl Delta/ algorithms offer less system complexity and provide performance similar to that of the JDL with higher degrees of freedom. It is also shown that the earth's rotation induces a crab angle, which makes the clutter range-Doppler spectrum range dependent. This paper shows that this crab angle severely degrades STAP performance.","PeriodicalId":309617,"journal":{"name":"Thirty-Sixth Southeastern Symposium on System Theory, 2004. Proceedings of the","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2004-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Thirty-Sixth Southeastern Symposium on System Theory, 2004. Proceedings of the","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SSST.2004.1295630","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
This paper deals with beam-based space-time adaptive processing (STAP) algorithms for a low-earth-orbit (LEO) space-based radar (SBR). The performance of a subarray-based joint-domain-localized (JDL) algorithm is first examined for different parameters. Then, a combined beam-domain STAP algorithm approach that combines JDL with difference (/spl Delta/) beams is presented. It is shown that the combined JDL-/spl Delta/ algorithms offer less system complexity and provide performance similar to that of the JDL with higher degrees of freedom. It is also shown that the earth's rotation induces a crab angle, which makes the clutter range-Doppler spectrum range dependent. This paper shows that this crab angle severely degrades STAP performance.
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