{"title":"带限非线性信道中形状BPSK的多模态分析","authors":"R. Ziemer, R. Turcotte","doi":"10.1109/MILCOM.1993.408626","DOIUrl":null,"url":null,"abstract":"The application of the Viterbi algorithm (VA) to perform maximum-likelihood sequence estimation (MLSE) of shaped biphase-shift keyed (SBPSK) modulation is presented, and its performance characterized in channels typical of UHF military satellite communications by computer simulation. The channel models utilized consist of five-pole Chebyshev and 16 two-pole cascaded Butterworth filters followed, in some cases, by a nonlinear model for a traveling-wave tube (TWT) amplifier proposed by A. A. M. Saleh (1981). The VA detector is compared with integrate-and-dump (I&D) detection and a simplified metric calculation for the VA. The results show that even in severely bandlimited channels with the nonlinearity, VA detection gives improved performance. Without the nonlinearity, VA detection provides an E/sub b//N/sub o/ gain over I&D detection from two to three dB, depending on the amount of bandlimiting.<<ETX>>","PeriodicalId":323612,"journal":{"name":"Proceedings of MILCOM '93 - IEEE Military Communications Conference","volume":"11 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1993-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"MLSE of shaped BPSK in bandlimited nonlinear channels\",\"authors\":\"R. Ziemer, R. Turcotte\",\"doi\":\"10.1109/MILCOM.1993.408626\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The application of the Viterbi algorithm (VA) to perform maximum-likelihood sequence estimation (MLSE) of shaped biphase-shift keyed (SBPSK) modulation is presented, and its performance characterized in channels typical of UHF military satellite communications by computer simulation. The channel models utilized consist of five-pole Chebyshev and 16 two-pole cascaded Butterworth filters followed, in some cases, by a nonlinear model for a traveling-wave tube (TWT) amplifier proposed by A. A. M. Saleh (1981). The VA detector is compared with integrate-and-dump (I&D) detection and a simplified metric calculation for the VA. The results show that even in severely bandlimited channels with the nonlinearity, VA detection gives improved performance. Without the nonlinearity, VA detection provides an E/sub b//N/sub o/ gain over I&D detection from two to three dB, depending on the amount of bandlimiting.<<ETX>>\",\"PeriodicalId\":323612,\"journal\":{\"name\":\"Proceedings of MILCOM '93 - IEEE Military Communications Conference\",\"volume\":\"11 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1993-10-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of MILCOM '93 - IEEE Military Communications Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MILCOM.1993.408626\",\"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.1993.408626","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
MLSE of shaped BPSK in bandlimited nonlinear channels
The application of the Viterbi algorithm (VA) to perform maximum-likelihood sequence estimation (MLSE) of shaped biphase-shift keyed (SBPSK) modulation is presented, and its performance characterized in channels typical of UHF military satellite communications by computer simulation. The channel models utilized consist of five-pole Chebyshev and 16 two-pole cascaded Butterworth filters followed, in some cases, by a nonlinear model for a traveling-wave tube (TWT) amplifier proposed by A. A. M. Saleh (1981). The VA detector is compared with integrate-and-dump (I&D) detection and a simplified metric calculation for the VA. The results show that even in severely bandlimited channels with the nonlinearity, VA detection gives improved performance. Without the nonlinearity, VA detection provides an E/sub b//N/sub o/ gain over I&D detection from two to three dB, depending on the amount of bandlimiting.<>
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
