摘要
在介绍正交振幅调制(QAM)信号的调制、解调原理的基础上,以相对比较复杂的256QAM为例,对QAM信号的频带利用率和误码率性能进行了分析,给出了用动态系统仿真和分析软件SystemView进行系统仿真的具体设置,并分析了仿真结果。
The principle of QAM signal modulation and demodulation is introduced, and then the performance of spectrum utilization and BER of 256 QAM signals are analysed. The simulation procedures are given by applying SystemView, which is used as tool software for dynamic system simulation and performance analysis. Finally, the simulation results are analysed.
出处
《电讯技术》
2008年第7期14-17,共4页
Telecommunication Engineering
基金
通信系统信息控制技术国家重点实验室基金资助项目
关键词
移动通信
256QAM信号
调制解调
载波恢复
误码率
仿真
mobile communication
256QAM signal
modulation/demodulation
carrier recovery
BER
simulation
