滤波器预加重设计改善恒参信道信号完整性  

Pre-emphasis Design in Filter Improved the Signal Integrity of Communication Channel with Constant Parameters

作　　者：王志成[1,2] 徐晓文[1] 路志勇[2] 

机构地区：[1]北京理工大学信息与电子学院,北京100081 [2]中国电子科技集团公司第54研究所,石家庄050081

出　　处：《微波学报》2016年第1期61-64,共4页Journal of Microwaves

摘　　要：分析了通信系统信道信号完整性问题产生的原因,创新性的提出了在模拟成形滤波器上使用预加重设计解决信道信号完整性问题的方法;对模拟成形滤波器进行了设计,并在设计中同时考虑了幅度补偿和相位均衡,给出了滤波器的仿真和测试结果;把模拟成形滤波器用于通信系统中,对调制信号进行测试,验证了它对系统信号完整性的改善情况,并通过对通信系统性能测试验证了模拟成形滤波器通过预加重设计对系统误码率的改善情况。The reason of Signal Integrity（SI）problem in communication channel was analyzed. Pre-emphasis design method in an-alog shaping filter to solve the SI problems of communication channel was proposed in this paper. The analog shaping filter was de-signed. The amplitude compensation and the phase equalization are considered in the design. The simulated and test results of the filterwere given in the paper. The modulating signal was tested with the filter in communication system,proving that the SI problem was im-proved significantly. Finally we tested the communication property with the filter,and the bit error rate was decreased by 2 orders ofmagnitude.

关 键 词：预加重 模拟成形滤波 幅度补偿 相位均衡 

分 类 号：TN713[电子电信—电路与系统]