Turbo码的性能分析及其应用

纠错编码技术作为改善数字通信可靠性的一种有效手段,在数字通信的各个领域中获得极为广泛的应用,其主要分为卷积码、分组码。Turbo码是并行级联递归系统卷积码。他在接近Shannon限的低信噪比下能获得较低的误码率。因为其优越的性能,现在已经被许多通信系统所采用。就近年来的研究热点纠错编码Turbo码进行分析,旨在阐明Turbo码的基本原理和各参数对Turbo码纠错性能的影响以及在无线通信系统中的应用。

Performance Analysis and Application of Turbo Codes

The technology of error correcting code is an efficient way for improving the reliability of the digital communication(systems.) It obtains the extremely widespread application in each domain of the digital communication,and it is classified into convolutional code and block code.Turbo code is the parallel concatenated convolutional code.They can gain lower Bit Error Rate(BER) in the low Signal Noise Rate(SNR) which is near Shannon limit.Because of the predominant performance,they have been adopted in the many communication systems.This paper analyzes the technology of error correcting code(Turbo code),which is becoming more and more popular in recent years.Its aim is to clarify the basic principle of Turbo code and influence of various parameters on its performance as well as the application in wireless communication systems.