| 一种含有码间干扰抵消功能的译码新算法 |
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| 引用本文： | 季寒冰,王维一.一种含有码间干扰抵消功能的译码新算法[J].上海交通大学学报,1991(3). |
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| 作者姓名： | 季寒冰 王维一 |
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| 作者单位： | 上海交通大学电子工程系
(季寒冰)，上海交通大学电子工程系(王维一) |
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| 摘 要： | 本文对解调卷积编码的高速数据信号,提出了一种均衡与译码相结合的新方法.在分析均衡与译码基本原理的基础上,按照最大似然估计理论,导出了维特比译码新的算法公式.该新算法能够在实现译码过程中,同时完成抵消码间干扰的均衡器功能.文中也分析了慢时变信道自适应估计的迭代公式.最后以OPSK 为例进行了计算机模拟实验,得到了比较满意的结果.
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| 关 键 词： | 卷积编码 均衡 维特比译码 最大似然估计 码间干扰 时变信道 |
A New Decoding Algorithm Including Intersymbol Interference Cancellation |
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| Ji Hanbing Wang Weiyi.A New Decoding Algorithm Including Intersymbol Interference Cancellation[J].Journal of Shanghai Jiaotong University,1991(3). |
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| Authors: | Ji Hanbing Wang Weiyi |
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| Institution: | Ji Hanbing Wang Weiyi |
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| Abstract: | A new method combining equalization and decoding is presented inthis paper to demodulate high-speed data signals constructed by convolutionalcodes.On the basis of the theory of equalization and decoding,we deduce anew Viterbi decoding algorithm from Maximum Likelihood criterion.Whenthe algorithm is used,intersymbol interference will be cancelled simultaneouslyin the process of decoding.The iterative formula of the adaptive estimationfor the time-slowly-varying channel is also analysed.Finally,OPSK signalsare taken for computer simulation,and the results obtained are satisfactory. |
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| Keywords: | convolutional coding equalization Viterbi decoding maximum likelihood estimation intersymbol interference time-varying channel |
| 本文献已被 CNKI 等数据库收录！ |
