基于小波包的多载波技术

江泽民同志关于“三个代表”思想的重要论述,自始至终贯穿和体现着历史唯物主义的思想精华,是以马克思主义哲学为理论基石的。历史唯物主义关于社会基本矛盾原理和生产力是社会发展最终决定力量原理,是“代表中国先进生产力的发展要求”的哲学依据;关于社会存在和社会意识关系原理、关于文化的社会功能及作用的基本观点是“代表中国先进文化的前进方向”的哲学依据和理论来源;关于人民群众是历史创造者的基本观点是“代表中国最广大人民根本利益”的理论基础。困此,在理论上坚持马克思主义,在实践中就要成为“三个代表”思想的忠实履行者。

Wavelet Packet Based Multicarrier Technique

Multicarrier modulation techniques, including OFDM and OWPDM are among the promising techniques. Through comparing three kinds of wavelet based multicarrier techniques,it is found that WPM is more eminent than MSM and MWM.Then bi-orthogonal wavelet is introduced as subcarrier basis functions. The performance of the system is simulated and analyzed on the AWGN and flat Rayleigh channel. The introduction of the bi-orthogonal wavelet is the most important step toward practical implementation.