{"title":"扩频接收机的一种二阶延迟锁定环路","authors":"J. Wang","doi":"10.1109/MILCOM.1993.408707","DOIUrl":null,"url":null,"abstract":"The tracking performance of 2nd-order delay-locked loops (DLL) with high gain for PN code chip synchronization is theoretically analyzed and evaluated by means of a Fokker-Planck equation. The results show that the steady state probability density function of normalized delay error of 2nd-order DLL with high gain is similar to that of a lst-order DLL; for the same mean-squared tracking jitter, the former has 10 log (1 + 1/4/spl xi//sup 2/) (db) less signal-to-noise ratio than the latter. Also, some experimental results are presented. Though only DLL is analyzed, the analytical method is valid for other kinds of tracking loops.<<ETX>>","PeriodicalId":323612,"journal":{"name":"Proceedings of MILCOM '93 - IEEE Military Communications Conference","volume":"158 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1993-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"A second-order delay-locked loop of a spread spectrum receiver\",\"authors\":\"J. Wang\",\"doi\":\"10.1109/MILCOM.1993.408707\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The tracking performance of 2nd-order delay-locked loops (DLL) with high gain for PN code chip synchronization is theoretically analyzed and evaluated by means of a Fokker-Planck equation. The results show that the steady state probability density function of normalized delay error of 2nd-order DLL with high gain is similar to that of a lst-order DLL; for the same mean-squared tracking jitter, the former has 10 log (1 + 1/4/spl xi//sup 2/) (db) less signal-to-noise ratio than the latter. Also, some experimental results are presented. Though only DLL is analyzed, the analytical method is valid for other kinds of tracking loops.<<ETX>>\",\"PeriodicalId\":323612,\"journal\":{\"name\":\"Proceedings of MILCOM '93 - IEEE Military Communications Conference\",\"volume\":\"158 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1993-10-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of MILCOM '93 - IEEE Military Communications Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MILCOM.1993.408707\",\"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 MILCOM '93 - IEEE Military Communications Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MILCOM.1993.408707","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A second-order delay-locked loop of a spread spectrum receiver
The tracking performance of 2nd-order delay-locked loops (DLL) with high gain for PN code chip synchronization is theoretically analyzed and evaluated by means of a Fokker-Planck equation. The results show that the steady state probability density function of normalized delay error of 2nd-order DLL with high gain is similar to that of a lst-order DLL; for the same mean-squared tracking jitter, the former has 10 log (1 + 1/4/spl xi//sup 2/) (db) less signal-to-noise ratio than the latter. Also, some experimental results are presented. Though only DLL is analyzed, the analytical method is valid for other kinds of tracking loops.<>
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