{"title":"数字移动无线电通信中采用再训练RLS算法的均衡器性能","authors":"T. Ueda, H. Suzuki","doi":"10.1109/VETEC.1990.110383","DOIUrl":null,"url":null,"abstract":"To improve the transmission performance of high bit-rate digital mobile radio communications in frequency-selective fading environments, a retraining recursive least squares (RT-RLS) algorithm for a decision feedback equalizer (DFE) is proposed. Performance evaluation experiments were carried out with a real-time experimental system that includes a DFE implemented by a single-chip digital signal processor (DSP). Experiments were performed by transmitting 250 kbit/s quadrature phase shift keying (QPSK) at a maximum Doppler frequency up to 160 Hz. The experiment assumes a two-wave model, in which waves have the same power and fluctuate independently with Rayleigh distribution. A bit error ratio (BER) performance below 10/sup -2/ was realized.<<ETX>>","PeriodicalId":366352,"journal":{"name":"40th IEEE Conference on Vehicular Technology","volume":"59 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1990-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"24","resultStr":"{\"title\":\"Performance of equalizers employing a re-training RLS algorithm for digital mobile radio communications\",\"authors\":\"T. Ueda, H. Suzuki\",\"doi\":\"10.1109/VETEC.1990.110383\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"To improve the transmission performance of high bit-rate digital mobile radio communications in frequency-selective fading environments, a retraining recursive least squares (RT-RLS) algorithm for a decision feedback equalizer (DFE) is proposed. Performance evaluation experiments were carried out with a real-time experimental system that includes a DFE implemented by a single-chip digital signal processor (DSP). Experiments were performed by transmitting 250 kbit/s quadrature phase shift keying (QPSK) at a maximum Doppler frequency up to 160 Hz. The experiment assumes a two-wave model, in which waves have the same power and fluctuate independently with Rayleigh distribution. A bit error ratio (BER) performance below 10/sup -2/ was realized.<<ETX>>\",\"PeriodicalId\":366352,\"journal\":{\"name\":\"40th IEEE Conference on Vehicular Technology\",\"volume\":\"59 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1990-05-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"24\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"40th IEEE Conference on Vehicular Technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/VETEC.1990.110383\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"40th IEEE Conference on Vehicular Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/VETEC.1990.110383","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Performance of equalizers employing a re-training RLS algorithm for digital mobile radio communications
To improve the transmission performance of high bit-rate digital mobile radio communications in frequency-selective fading environments, a retraining recursive least squares (RT-RLS) algorithm for a decision feedback equalizer (DFE) is proposed. Performance evaluation experiments were carried out with a real-time experimental system that includes a DFE implemented by a single-chip digital signal processor (DSP). Experiments were performed by transmitting 250 kbit/s quadrature phase shift keying (QPSK) at a maximum Doppler frequency up to 160 Hz. The experiment assumes a two-wave model, in which waves have the same power and fluctuate independently with Rayleigh distribution. A bit error ratio (BER) performance below 10/sup -2/ was realized.<>
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