数字调幅广播系统(DAM)中应用Turbo码的分析  

Analysis of the performance of Turbo coding in Digital AM Broadcast

作　　者：于青[1] 董在望[1] 

机构地区：[1]清华大学电子工程系,北京100084

出　　处：《电声技术》2004年第1期63-66,77,共5页Audio Engineering

摘　　要：描述了一个利用MATLAB设计的仿真平台,用于分析Turbo码应用于AM频段数字音频广播系统的性能,简要说明了平台中使用的Turbo码的编、解码算法。利用此平台以DRM(全球数字广播)系统的参数和AWGN信道为例进行仿真,结果表明,在所分析的情况下,应用Turbo码可以得到较好的性能,并在技术上有一定的可实现性。In this article,a simulating platform designed with MATLAB is presented as well as a simple description of the Turbo coding/decoding algorithm used by it. This platform can be used for analysing the performance of digital audio broadcasting systems in AM band. By using this platform to simulate with DRM system parameters and AWGN channel, a conclusion can be made that better performance can be attained using Turbo coding/decoding in the analysed conditions with a certain ability of technical realization.

关 键 词：数字调幅广播系统 DAM TURBO码 AM频段 解码算法 高斯白噪声 

分 类 号：TN934.1[电子电信—信号与信息处理]