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| 同步误差条件下的DMT均衡算法性能比较 | |
| 引用本文： | 曹文婷,柯赓,李真,江顺.同步误差条件下的DMT均衡算法性能比较[J].电子质量,2013(6):60-63. |
| 作者姓名： | 曹文婷 柯赓 李真 江顺 |
| 作者单位： | 1. 解放军理工大学通信工程学院研究生3队,江苏南京,210007 2. 解放军理工大学通信工程学院系统工程教研中心,江苏南京,210007 3. 解放军理工大学通信工程学院研究生2队,江苏南京,210007 |
| 摘 要： | 在离散多音调制(DMT)系统下,同步技术是实现信号准确接收的关键技术之一.该文主要研究发送和接收时钟在产生偏差时,对MMSE,MSSNR,Min-ISI和PTEQ四种均衡算法的性能影响.仿真根据G.DMT标准,采用5公里轻型被复线信道冲激响应模型.此时,通过三次样条插值方法对接收信号进行重新采样,从而收发实现时钟偏差.根据蒙特卡洛实验方法的仿真结果得知:此时四种均衡算法性能与时钟理想时的性能相比,信道容量均有较小下降. |
| 关 键 词： | DMT 均衡 同步 信道容量 三次样条插值 |
DMT Equalization Performance Comparison of Synchronization Windage |
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| Cao Wen-ting , Ke Geng , Li Zhen , Jiang Shun.DMT Equalization Performance Comparison of Synchronization Windage[J].Electronics Quality,2013(6):60-63. | |
| Authors: | Cao Wen-ting Ke Geng Li Zhen Jiang Shun |
| Affiliation: | 1.Postgraduate Team 3 ICE,PLAUST,Jiangsu Nanjing 210007;2.Teaching and Research Center of Systems Engineering,PLAUST,Jiangsu Nanjing 210007;3.Postgraduate Team 2 ICE,PLAUST,Jiangsu Nanjing 210007) |
| Abstract: | Equalization is the one of the key techniques for exactly receiving symbols in DMT system.This paper mainly studies the performance effects of four equalization algorithms which is MMSE,MSSNR,Min-ISI and PTEQ,when the clocks of the sending end and receiving end bring about excursion.Simulation is ac- cording to the G.DMT standard,and uses the channel impulse response modeling of 5 kilometer light field telephone wire.And it anew samples received symbols by means of three times spline interpolation realizing the excursion of the clocks.According to the simulation results of Monte Carlo method,channel capacity of four algorithms have less decline compared to the condition of clocks synchronization. |
| Keywords: | DMT equalization synchronization channel capacity three times spline interpolation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
