摘要
文章首先介绍了CMMB系统的架构,接着总结了移动通信中无线信道的特征,通过对衰落信道与AWGN信道的对比引出了分集的概念。然后从时间,频率,空间的角度分析了分集的实现方法。最后阐述了CMMB系统是如何利用这些分集技术的。
The thesis first introduces the architecture of CMMB system, and then summarizes the features of the wireless channel in mobile communication. Through the comparison between fading channel and AWGN channel, the concept of Diversity is led. Then the implementation methods for diversity are analyzed from the perspective of the time, frequency, and space. Finally, the thesis expounds how to utilize these diversity techniques in CMMB system.
出处
《电子技术（上海）》
2011年第11期68-70,67,共4页
Electronic Technology
