软件无线电中的数字化快速解调算法  

Algorithm for Fast Digital Demodulation in Software Radio Systems

作　　者：黄红兵[1] 曹敦[1] 吴志敏[1] 

机构地区：[1]长沙理工大学计算机与通信工程学院,湖南长沙410076

出　　处：《通信技术》2007年第11期168-169,198,共3页Communications Technology

基　　金：湖南省教育厅科研基金资助项目(No.06C115)

摘　　要：软件无线电中信号的调制与解调是研究的重点问题之一。文章基于希尔伯特变换提出了一种在软件无线电中的数字化快速解调算法,理论分析和仿真结果表明,该解调方案的抗干扰性能有明显改善,与传统解调方法相比,通用性强、简单、计算量小且易于实现,能很好地满足软件无线电中的要求。具有理论意义和实际应用价值。Modulation and demodulation of signal is one of the most important research topics in software radio （SR）. Based on Hilbert transform, this paper presents an algorithm for fast digital demodulation in SR. Theoretical analysis and simulation results indicates that noise-resisting property has been improved obviously. Compared with traditional methods, it is all-purpose, simple, and easy in realization with less computation, thus can satisfy the requirements of demodulation algorithm in SR. The algorithm is of theoretical significance and practical value.

关 键 词：软件无线电 希尔伯特变换 数字化解调 仿真 

分 类 号：TN911[电子电信—通信与信息系统]