卫星链路网格编码调制信号的载波同步  

Carrier phase synchronization for trellis coding modulation signal in satellite links

作　　者：曹金玉[1] 魏迎春[1] 

机构地区：[1]长春邮电学院通信工程系

出　　处：《长春邮电学院学报》1999年第1期35-39,共5页Journal of Changchun Post and Telecommunication Institute

摘　　要：分析了数字调制解调器载波同步技术，提供了计算机模拟测试的结果，并通过对两种不同鉴相器系统的性能比较，说明了把信号相位判断过程与信号解码过程结合，可使系统的性能得到明显改善。A technique for Carrier synchronization of a digital modem is studied and the results of computer simulations are given.Through comparison of two kinds of phase estimator systems,it is shown that the combination of phase signal decision process and signal decoding process will improve system performances obviously.

关 键 词：卷积码 相移键控 载频同步 网格编码调制 

分 类 号：TN761[电子电信—电路与系统] TN927.2