一种基于小波包的多载波数字AM系统  

A Multi-carrier Digital AM System Based on Wavelet Packet

作　　者：黄奎[1] 吕锐[1] 

机构地区：[1]北京广播学院数字化工程中心,北京100024

出　　处：《电子学报》2003年第10期1580-1583,共4页Acta Electronica Sinica

基　　金：国家重点基础研究规划项目 (973)G1 9990 32 9;教育部重点科研项目"数字AM广播系统基础研究" ;广电总局重点科研项目"数字AM传输系统"的资助

摘　　要：本文分析了基于正交幅度调制的小波包调制在不同信道模型下的性能 ,并对这种小波包多载波调制系统进行了性能仿真 .通过与基于离散傅里叶变换的正交频分复用调制系统进行比较 。The performance of wavelet packet modulation based on Quadrature Amplitude Modulation under different channel models is theoretically analyzed in this paper,and we simulate the wavelet packet multi carrier modulation system,which is compared with OFDM orthogonal freqaency division multiplexing modulation system based on DFT from variant aspects.Finally,the possibility of wavelet packet modulation application in Digital AM transmission system is discussed.

关 键 词：数字AM 小波包变换 多载波调制 正交幅度调制 

分 类 号：TN176.11[电子电信—物理电子学]