{"title":"一种基于分数阶傅里叶变换的多径分离与时延测量新方法","authors":"Zeyi Yang, R. Tao, Yue Wang","doi":"10.1145/3291842.3291902","DOIUrl":null,"url":null,"abstract":"Based on the fractional Fourier transform (FrFT), the authors propose a novel method for multipath separation and measurement of root mean square (RMS) delay spread by using a chirp pilot symbols. Different multipath chirp components with different time delays will be concentrated on different fractional frequency points in fractional Fourier domain (FrFD) through FrFT. Meanwhile, the envelope amplitude of a concentrated component indicates the corresponding signal energy. Therefore, the different multipath components can be separated clearly and the RMS delay spread of a multipath channel can be measured accurately in FrFD.","PeriodicalId":283197,"journal":{"name":"Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering","volume":"22 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Novel Method for Multipath Separation and Measurement of Root Mean Square Delay Spread Based on Fractional Fourier Transform in a Multipath Channel\",\"authors\":\"Zeyi Yang, R. Tao, Yue Wang\",\"doi\":\"10.1145/3291842.3291902\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Based on the fractional Fourier transform (FrFT), the authors propose a novel method for multipath separation and measurement of root mean square (RMS) delay spread by using a chirp pilot symbols. Different multipath chirp components with different time delays will be concentrated on different fractional frequency points in fractional Fourier domain (FrFD) through FrFT. Meanwhile, the envelope amplitude of a concentrated component indicates the corresponding signal energy. Therefore, the different multipath components can be separated clearly and the RMS delay spread of a multipath channel can be measured accurately in FrFD.\",\"PeriodicalId\":283197,\"journal\":{\"name\":\"Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering\",\"volume\":\"22 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-11-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1145/3291842.3291902\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1145/3291842.3291902","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A Novel Method for Multipath Separation and Measurement of Root Mean Square Delay Spread Based on Fractional Fourier Transform in a Multipath Channel
Based on the fractional Fourier transform (FrFT), the authors propose a novel method for multipath separation and measurement of root mean square (RMS) delay spread by using a chirp pilot symbols. Different multipath chirp components with different time delays will be concentrated on different fractional frequency points in fractional Fourier domain (FrFD) through FrFT. Meanwhile, the envelope amplitude of a concentrated component indicates the corresponding signal energy. Therefore, the different multipath components can be separated clearly and the RMS delay spread of a multipath channel can be measured accurately in FrFD.
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