4×155Mbps调制解调器同步算法仿真  

Synchronous Algorithm Simulation of 4×155Mbps Modem

作　　者：刘利强[1] 安磊[2] 李志勇[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081 [2]通信指挥学院,湖北武汉430010

出　　处：《计算机与网络》2008年第15期36-38,共3页Computer & Network

摘　　要：分析了全数字调制解调器核心算法,讨论了4×155Mbps 高速调制解调器中所采用的16—64QAM 高精度内插算法、符号同步算法和载波恢复算法及其改进算法,并进行了仿真。论文详细描述了仿真的实现步骤,并给出了仿真结果并进行了对比,最终仿真结果可直接用于硬件电路的研制。在之后进行的硬件实现和测试中,仿真结果的正确性得到了验证。The kernel algorithm of all-digital modem is analyzed in the paper, the high precision interpolation method, symbol synchronization algorithm, carrier recovery algorithm and its improved algorithm are discussed and simulated for 4x155Mbps high-speed 16-64 QAM modem. The simulation processes are described in detail and simulation results are provided and compared with each other, so the final simulation results can be used in hardware design directly. The validity of simulation result is proved by hardware imple- mentation and testing.

关 键 词：高速调制解调器 QAM定时恢复 载波恢复 

分 类 号：TN925.91[电子电信—通信与信息系统]