{"title":"大气无线电噪声下基于GMSK和LDPC的VLF通信性能增强","authors":"A. Kumar, R. Bahl, R. Gupta, H. Choudhary","doi":"10.1109/NCC.2013.6488002","DOIUrl":null,"url":null,"abstract":"The performance of Gaussian minimum shift keying (GMSK) modulation scheme for very-low frequency (VLF) communication is evaluated experimentally in terms of the bit error rate. The atmospheric noise in this channel, which is predominantly non-Gaussian, is simulated using the clustering-Poisson model. A data-adaptive scheme is proposed for the suppression of the noise impulses for signal enhancement. The effects of channel coding and signal enhancement are presented, when the channel noise is modeled either as additive white Gaussian noise or as impulsive atmospheric radio noise. It is observed that the coding technique and the signal enhancement improve the performance of the communication system in the presence of the atmospheric radio noise, making it comparable with its performance in the presence of additive white Gaussian noise.","PeriodicalId":202526,"journal":{"name":"2013 National Conference on Communications (NCC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Performance enhancement of GMSK and LDPC based VLF communication in atmospheric radio noise\",\"authors\":\"A. Kumar, R. Bahl, R. Gupta, H. Choudhary\",\"doi\":\"10.1109/NCC.2013.6488002\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The performance of Gaussian minimum shift keying (GMSK) modulation scheme for very-low frequency (VLF) communication is evaluated experimentally in terms of the bit error rate. The atmospheric noise in this channel, which is predominantly non-Gaussian, is simulated using the clustering-Poisson model. A data-adaptive scheme is proposed for the suppression of the noise impulses for signal enhancement. The effects of channel coding and signal enhancement are presented, when the channel noise is modeled either as additive white Gaussian noise or as impulsive atmospheric radio noise. It is observed that the coding technique and the signal enhancement improve the performance of the communication system in the presence of the atmospheric radio noise, making it comparable with its performance in the presence of additive white Gaussian noise.\",\"PeriodicalId\":202526,\"journal\":{\"name\":\"2013 National Conference on Communications (NCC)\",\"volume\":\"3 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2013-03-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2013 National Conference on Communications (NCC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/NCC.2013.6488002\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 National Conference on Communications (NCC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NCC.2013.6488002","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Performance enhancement of GMSK and LDPC based VLF communication in atmospheric radio noise
The performance of Gaussian minimum shift keying (GMSK) modulation scheme for very-low frequency (VLF) communication is evaluated experimentally in terms of the bit error rate. The atmospheric noise in this channel, which is predominantly non-Gaussian, is simulated using the clustering-Poisson model. A data-adaptive scheme is proposed for the suppression of the noise impulses for signal enhancement. The effects of channel coding and signal enhancement are presented, when the channel noise is modeled either as additive white Gaussian noise or as impulsive atmospheric radio noise. It is observed that the coding technique and the signal enhancement improve the performance of the communication system in the presence of the atmospheric radio noise, making it comparable with its performance in the presence of additive white Gaussian noise.
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