L. Ting, C. Cowan, Roger Francis Woods, P. R. Cork, C. L. Sprigings
{"title":"泄漏LMS对啁啾信号的跟踪性能","authors":"L. Ting, C. Cowan, Roger Francis Woods, P. R. Cork, C. L. Sprigings","doi":"10.1109/SIPS.2001.957335","DOIUrl":null,"url":null,"abstract":"The initial frequency pass-band of the LMS filter remains whilst tracking a non-stationary chirped signal. This past memory effect causes unwanted white noise to leak through the initial residual pass-band of the adaptive filter. A leakage term is applied to the LMS algorithm to remove the memory effect of the tracking filter which leads to a reduction in the noise power at the output of the adaptive filter. This reduced noise power is reflected in an improved SNR (signal-to-noise ratio) of a low SNR chirped signal compared to the standard LMS algorithm.","PeriodicalId":246898,"journal":{"name":"2001 IEEE Workshop on Signal Processing Systems. SiPS 2001. Design and Implementation (Cat. No.01TH8578)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2001-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Tracking performance of leakage LMS for chirped signals\",\"authors\":\"L. Ting, C. Cowan, Roger Francis Woods, P. R. Cork, C. L. Sprigings\",\"doi\":\"10.1109/SIPS.2001.957335\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The initial frequency pass-band of the LMS filter remains whilst tracking a non-stationary chirped signal. This past memory effect causes unwanted white noise to leak through the initial residual pass-band of the adaptive filter. A leakage term is applied to the LMS algorithm to remove the memory effect of the tracking filter which leads to a reduction in the noise power at the output of the adaptive filter. This reduced noise power is reflected in an improved SNR (signal-to-noise ratio) of a low SNR chirped signal compared to the standard LMS algorithm.\",\"PeriodicalId\":246898,\"journal\":{\"name\":\"2001 IEEE Workshop on Signal Processing Systems. SiPS 2001. Design and Implementation (Cat. No.01TH8578)\",\"volume\":\"97 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2001-09-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2001 IEEE Workshop on Signal Processing Systems. SiPS 2001. Design and Implementation (Cat. No.01TH8578)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/SIPS.2001.957335\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2001 IEEE Workshop on Signal Processing Systems. SiPS 2001. Design and Implementation (Cat. No.01TH8578)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SIPS.2001.957335","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Tracking performance of leakage LMS for chirped signals
The initial frequency pass-band of the LMS filter remains whilst tracking a non-stationary chirped signal. This past memory effect causes unwanted white noise to leak through the initial residual pass-band of the adaptive filter. A leakage term is applied to the LMS algorithm to remove the memory effect of the tracking filter which leads to a reduction in the noise power at the output of the adaptive filter. This reduced noise power is reflected in an improved SNR (signal-to-noise ratio) of a low SNR chirped signal compared to the standard LMS algorithm.