C. Beaudoin, A. Gatesman, M. Clinard, J. Waldman, R. Giles, W. Nixon
{"title":"Physical scale modeling of VHF/UHF SAR collection geometries","authors":"C. Beaudoin, A. Gatesman, M. Clinard, J. Waldman, R. Giles, W. Nixon","doi":"10.1109/NRC.2004.1316477","DOIUrl":null,"url":null,"abstract":"A method of physically modeling a linear flight path SAR collection in a scale-model VHF/UHF ISAR facility is presented. Accurate modeling of a SAR's collection geometry is necessary if meaningful comparisons are to be made between scale-model and field imagery. The advantage of collecting data in a linear flight path geometry is that height-unlimited focusing of scatterers can be achieved. The technique utilizes precise orientation of the target's azimuth and elevation relative to the fixed radar antenna, thereby effectively simulating a linear flight path collection. The impact of such a collection at VHF/UHF frequencies is demonstrated by comparing linear flight path ISAR imagery with traditional fixed grazing angle ISAR imagery. Both simulated and instrumented imagery are presented.","PeriodicalId":268965,"journal":{"name":"Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2004-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 2004 IEEE Radar Conference (IEEE Cat. No.04CH37509)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NRC.2004.1316477","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
Abstract
A method of physically modeling a linear flight path SAR collection in a scale-model VHF/UHF ISAR facility is presented. Accurate modeling of a SAR's collection geometry is necessary if meaningful comparisons are to be made between scale-model and field imagery. The advantage of collecting data in a linear flight path geometry is that height-unlimited focusing of scatterers can be achieved. The technique utilizes precise orientation of the target's azimuth and elevation relative to the fixed radar antenna, thereby effectively simulating a linear flight path collection. The impact of such a collection at VHF/UHF frequencies is demonstrated by comparing linear flight path ISAR imagery with traditional fixed grazing angle ISAR imagery. Both simulated and instrumented imagery are presented.