{"title":"Evaluation of noise and clutter induced relocation errors in SAR MTI","authors":"E. Yadin","doi":"10.1109/RADAR.1995.522626","DOIUrl":null,"url":null,"abstract":"A synthetic aperture radar (SAR) is a side looking airborne radar designed to produce two dimensional high resolution radar images. Moving targets are displaced in azimuth on a SAR map. A separate SAR-MTI process is therefore used for the detection and relocation of moving targets. Errors in estimating the angular positions of the detected moving targets are referred to as relocation errors. A two port interferometer antenna whose baseline lies along the flight direction allows the detection of slow moving targets that are otherwise masked by main lobe clutter. A model for evaluating relocation errors in a two port interferometer SAR-MTI scheme is developed. The effects of various parameters such as aircraft speed, antenna beamwidth, squint angle, radar PRF and the target to noise and clutter ratios are evaluated.","PeriodicalId":326587,"journal":{"name":"Proceedings International Radar Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1995-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"15","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings International Radar Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/RADAR.1995.522626","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 15
Abstract
A synthetic aperture radar (SAR) is a side looking airborne radar designed to produce two dimensional high resolution radar images. Moving targets are displaced in azimuth on a SAR map. A separate SAR-MTI process is therefore used for the detection and relocation of moving targets. Errors in estimating the angular positions of the detected moving targets are referred to as relocation errors. A two port interferometer antenna whose baseline lies along the flight direction allows the detection of slow moving targets that are otherwise masked by main lobe clutter. A model for evaluating relocation errors in a two port interferometer SAR-MTI scheme is developed. The effects of various parameters such as aircraft speed, antenna beamwidth, squint angle, radar PRF and the target to noise and clutter ratios are evaluated.
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