{"title":"多基地雷达的时频同步。使用有GPS信号和没有GPS信号的GPS规范参考的后果","authors":"T. Johnsen","doi":"10.1109/NRC.2002.999711","DOIUrl":null,"url":null,"abstract":"The use of time and frequency references disciplined to GPS has been studied in the context of use in multistatic radar. Several reference units with civilian GPS receivers were tested. Differences in 1PPS fluctuations were observed that would result in ranging errors when stable GPS signals were received. If GPS signals were lost further control of reference output depends on the stability of the reference unit. Drift in frequency and corresponding time deviation were observed according to reference quality. The stable rubidium references were found to give reliable synchronization output for a long time without synchronization.","PeriodicalId":448055,"journal":{"name":"Proceedings of the 2002 IEEE Radar Conference (IEEE Cat. No.02CH37322)","volume":"2013 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"22","resultStr":"{\"title\":\"Time and frequency synchronization in multistatic radar. Consequences to usage of GPS disciplined references with and without GPS signals\",\"authors\":\"T. Johnsen\",\"doi\":\"10.1109/NRC.2002.999711\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The use of time and frequency references disciplined to GPS has been studied in the context of use in multistatic radar. Several reference units with civilian GPS receivers were tested. Differences in 1PPS fluctuations were observed that would result in ranging errors when stable GPS signals were received. If GPS signals were lost further control of reference output depends on the stability of the reference unit. Drift in frequency and corresponding time deviation were observed according to reference quality. The stable rubidium references were found to give reliable synchronization output for a long time without synchronization.\",\"PeriodicalId\":448055,\"journal\":{\"name\":\"Proceedings of the 2002 IEEE Radar Conference (IEEE Cat. No.02CH37322)\",\"volume\":\"2013 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2002-08-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"22\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of the 2002 IEEE Radar Conference (IEEE Cat. No.02CH37322)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/NRC.2002.999711\",\"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 2002 IEEE Radar Conference (IEEE Cat. No.02CH37322)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NRC.2002.999711","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Time and frequency synchronization in multistatic radar. Consequences to usage of GPS disciplined references with and without GPS signals
The use of time and frequency references disciplined to GPS has been studied in the context of use in multistatic radar. Several reference units with civilian GPS receivers were tested. Differences in 1PPS fluctuations were observed that would result in ranging errors when stable GPS signals were received. If GPS signals were lost further control of reference output depends on the stability of the reference unit. Drift in frequency and corresponding time deviation were observed according to reference quality. The stable rubidium references were found to give reliable synchronization output for a long time without synchronization.
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