小波提升变换OFDM系统抗脉冲性能分析  

Analysis of the Anti-Impulse Character of Wavelet Lifting Transform OFDM System

作　　者：高建波[1] 赵尔沅[1] 乐光新[1] 

机构地区：[1]北京邮电大学电信工程学院

出　　处：《半导体技术》2006年第8期598-602,共5页Semiconductor Technology

基　　金：国家自然科学基金资助项目(69972010)

摘　　要：利用小波提升理论构造一种新的多载波(OFDM)系统,在原傅里叶变换的OFDM(FFT-OFDM)系统的优越性的基础上,扩大系统容量及有效地利用系统的带宽,并使整个系统简单化。进一步对小波提升变换OFDM及傅里叶变换OFDM的抗脉冲干扰性能进行了深入研究,仿真与实验结果表明:基于小波提升的OFDM系统抗脉冲干扰特性远远优于传统OFDM系统。A novel OFDM system based on wavelet lifting theory was presented, which inherit the advantages of common OFDM but also conquer some of the disadvantages and simplified the OFDM system. A perfect mathematic model and a computer simulation system were setup in order to study the anti-impulse interference character of the lifting-wavelet-based OFDM and the Fourier-based OFDM. The simulation resolutions show that the performance of the wavelet-lifting-based OFDM is better than Fourier-based OFDM.

关 键 词：信号处理 后3G 正交频分复用 小波变换 提升理论 

分 类 号：TN911.72[电子电信—通信与信息系统]