話音頻帶電話線路高速數(shù)據(jù)傳輸中的自適應(yīng)均衡
ADAPTIVE EQUALIZAT1ON FOR HIGH SPEED DATA TRANSMISSION OVER VOICEBAND TELEPHONE LINES
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摘要: 本文淪述用于話音頻帶電話線路高速數(shù)據(jù)傳輸?shù)恼徽{(diào)幅系統(tǒng)(QAM),分?jǐn)?shù)間隔均衡器(FSE)和三種最小二乘算法:卡爾曼(Kalman)算法、快速卡爾曼算法和自適應(yīng)網(wǎng)格式(adaptive lattice)算法用于上述系統(tǒng)的系數(shù)更新調(diào)整。最后簡要介紹實(shí)現(xiàn)的方法。
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關(guān)鍵詞:
Abstract: Quadrature-Amplitude Modulated (QAM) systems, Fractionally-Spaced Equalizer (FSE) that are for high speed data transmission over voice-band telephone lines are presented. The Kalman, fast Kalman, and adaptive lattice algorithms using a least square cost function to above systems are discussed. The paper concludes with the section about implementation approaches. -
A. P. Clark.[J].Advanced Data Transmission Systern, John Wiley Sons, New York.1977,:-[4]北京郵電學(xué)院數(shù)字通信教研室,數(shù)據(jù)傳輸原理,上冊,人民郵電出版社,1978.[5]Shahid Quoeshi, IEEE Commnn.ioations Magazine, 20(1982), 9.[7]R. D. Gitlin and S. B. Weinstein, BSTJ, 60(1981), 275.[8]G. Ungerboeck, IEEE Trans. on COM. COM-24(1976), 856.[10]D. T. L. Lee. M.Morf and B. Friedlander, IEEE Trans. on CAS, CAS-28(1981),467. -
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