{"title":"数字阵列雷达多通道标定方法","authors":"Weixing Li, Jianzhi Lin, Weihua Wang, Yasen Wang, Zengping Chen","doi":"10.1109/EURAD.2015.7346355","DOIUrl":null,"url":null,"abstract":"Amplitude and phase errors among multi-channels in digital array radar will seriously deteriorate the performance of digital beam-forming (DBF) and high resolution direction finding. This paper describes a practical calibration algorithm that calibrates amplitude and phase errors coarsely using interior calibration source and then realizes precise calibration by eigen-decomposition approach. Based on an 8-elements digital array radar test-bed operating at L & S band, experiments are carried out in the anechoic chamber and outdoors. After calibration, the radiation pattern is nearly ideal and the direction of arrival (DOA) estimation of measured data achieves a good performance. The expected results illustrate that interior-auto calibration algorithm is fairly effective and feasible in actual systems.","PeriodicalId":350086,"journal":{"name":"2015 European Microwave Conference (EuMC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":"{\"title\":\"Method of multi-channel calibration for digital array radar\",\"authors\":\"Weixing Li, Jianzhi Lin, Weihua Wang, Yasen Wang, Zengping Chen\",\"doi\":\"10.1109/EURAD.2015.7346355\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Amplitude and phase errors among multi-channels in digital array radar will seriously deteriorate the performance of digital beam-forming (DBF) and high resolution direction finding. This paper describes a practical calibration algorithm that calibrates amplitude and phase errors coarsely using interior calibration source and then realizes precise calibration by eigen-decomposition approach. Based on an 8-elements digital array radar test-bed operating at L & S band, experiments are carried out in the anechoic chamber and outdoors. After calibration, the radiation pattern is nearly ideal and the direction of arrival (DOA) estimation of measured data achieves a good performance. The expected results illustrate that interior-auto calibration algorithm is fairly effective and feasible in actual systems.\",\"PeriodicalId\":350086,\"journal\":{\"name\":\"2015 European Microwave Conference (EuMC)\",\"volume\":\"3 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-12-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"8\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 European Microwave Conference (EuMC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/EURAD.2015.7346355\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 European Microwave Conference (EuMC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EURAD.2015.7346355","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Method of multi-channel calibration for digital array radar
Amplitude and phase errors among multi-channels in digital array radar will seriously deteriorate the performance of digital beam-forming (DBF) and high resolution direction finding. This paper describes a practical calibration algorithm that calibrates amplitude and phase errors coarsely using interior calibration source and then realizes precise calibration by eigen-decomposition approach. Based on an 8-elements digital array radar test-bed operating at L & S band, experiments are carried out in the anechoic chamber and outdoors. After calibration, the radiation pattern is nearly ideal and the direction of arrival (DOA) estimation of measured data achieves a good performance. The expected results illustrate that interior-auto calibration algorithm is fairly effective and feasible in actual systems.
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