{"title":"Adaptive interference cancellation using time-varying beamforming weights for wideband LFM waveforms","authors":"S. Hayward, P. D. Baxter, T. Shepherd","doi":"10.1109/ACSSC.2000.910913","DOIUrl":null,"url":null,"abstract":"A system employing a narrow receiver bandwidth can achieve high range resolution through 'stretch' processing of linear frequency modulated (LFM) waveforms. At the output of the stretch processor the spatial statistics of interferers are time-varying, and consequently time-varying beamforming weights are required to achieve adequate interference cancellation. In this paper we describe a family of time-varying adaptive beamforming algorithms and assess their performance in terms of the quality of the resulting target range profiles. We show that there are performance advantages in using methods that constrain the weight vector to be smoothly time-varying.","PeriodicalId":10581,"journal":{"name":"Conference Record of the Thirty-Fourth Asilomar Conference on Signals, Systems and Computers (Cat. No.00CH37154)","volume":"17 1","pages":"30-35 vol.1"},"PeriodicalIF":0.0000,"publicationDate":"2000-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference Record of the Thirty-Fourth Asilomar Conference on Signals, Systems and Computers (Cat. No.00CH37154)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ACSSC.2000.910913","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
A system employing a narrow receiver bandwidth can achieve high range resolution through 'stretch' processing of linear frequency modulated (LFM) waveforms. At the output of the stretch processor the spatial statistics of interferers are time-varying, and consequently time-varying beamforming weights are required to achieve adequate interference cancellation. In this paper we describe a family of time-varying adaptive beamforming algorithms and assess their performance in terms of the quality of the resulting target range profiles. We show that there are performance advantages in using methods that constrain the weight vector to be smoothly time-varying.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
