结合RS纠错编码和Walsh变换的软扩频技术  

Soft Spectrum Spreading Technique Combining RS Error-correction Coding and Walsh Transforming

作　　者：唐大宇[1] 

机构地区：[1]中国西南电子技术研究所,成都610036

出　　处：《电讯技术》2012年第6期943-947,共5页Telecommunication Engineering

摘　　要：为了解决实际工程中信号被干扰的问题,增强纠检错能力,并提高保密性,提出了一种结合了RS纠错编码和Walsh变换的软扩频技术。通过对RS纠错编码产生和利用Walsh函数与复合码技术的Walsh变换方法的研究,以及和一般直扩频的比较,利用Matlab仿真阐述了软扩频技术的优势,并介绍了这种软扩频技术在实际工程中的应用。In order to solve signal interference in practical engineering and improve error- correction as well as encryption capability, a soft spectrum spreading technique combining RS error- correction coding and Walsh transform is proposed. Through RS error- correction codes generation, Walsh transform method research with help of Walsh function and composite coding, and comparison with conventional direct spectnnn spreading, ad- vantage of soft spectrum spreading technique is discussed based on Matlab simulation. Furthermore, practical engineering is also introduced.

关 键 词：软扩频 RS纠错编码 WALSH变换 复合码 

分 类 号：TN914.4[电子电信—通信与信息系统]