{"title":"用限制差分检测改善跳频CPFSK在部分频带干扰下的分集","authors":"H.M. Kwon, L. Miller, J. Lee","doi":"10.1109/MILCOM.1992.244093","DOIUrl":null,"url":null,"abstract":"The error probability achieved by a differential detector with a bandpass limiter preceding the receiver is analyzed for a slow-frequency-hopped continuous-phase frequency-shift keying (CPFSK) diversity waveform transmitted over a partial-band noise jamming channel, and is compared to the system's performance without the bandpass limiter. In principle, each bit is repeated on L different hops and, for the frequency-hopped/CPFSK system analyzed, these repetitions are combined to yield a soft decision. The main result of the work is that a diversity gain for error rate improvement in worst-case partial-band jamming is realized for the different detector preceded by a limiter, but not for the differential detector without a limiter. This result is shown by considering the error probability for L=2 in comparison with that for L=1.<<ETX>>","PeriodicalId":394587,"journal":{"name":"MILCOM 92 Conference Record","volume":"62 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1992-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Diversity improvement of frequency-hopped CPFSK in partial-band jamming by limiter-differential detection\",\"authors\":\"H.M. Kwon, L. Miller, J. Lee\",\"doi\":\"10.1109/MILCOM.1992.244093\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The error probability achieved by a differential detector with a bandpass limiter preceding the receiver is analyzed for a slow-frequency-hopped continuous-phase frequency-shift keying (CPFSK) diversity waveform transmitted over a partial-band noise jamming channel, and is compared to the system's performance without the bandpass limiter. In principle, each bit is repeated on L different hops and, for the frequency-hopped/CPFSK system analyzed, these repetitions are combined to yield a soft decision. The main result of the work is that a diversity gain for error rate improvement in worst-case partial-band jamming is realized for the different detector preceded by a limiter, but not for the differential detector without a limiter. This result is shown by considering the error probability for L=2 in comparison with that for L=1.<<ETX>>\",\"PeriodicalId\":394587,\"journal\":{\"name\":\"MILCOM 92 Conference Record\",\"volume\":\"62 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1992-10-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"MILCOM 92 Conference Record\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MILCOM.1992.244093\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"MILCOM 92 Conference Record","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MILCOM.1992.244093","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Diversity improvement of frequency-hopped CPFSK in partial-band jamming by limiter-differential detection
The error probability achieved by a differential detector with a bandpass limiter preceding the receiver is analyzed for a slow-frequency-hopped continuous-phase frequency-shift keying (CPFSK) diversity waveform transmitted over a partial-band noise jamming channel, and is compared to the system's performance without the bandpass limiter. In principle, each bit is repeated on L different hops and, for the frequency-hopped/CPFSK system analyzed, these repetitions are combined to yield a soft decision. The main result of the work is that a diversity gain for error rate improvement in worst-case partial-band jamming is realized for the different detector preceded by a limiter, but not for the differential detector without a limiter. This result is shown by considering the error probability for L=2 in comparison with that for L=1.<>
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