基于小波包变换的多载波调制解调算法及其DSP实现

Algorithm of Wavelet Packet Transform-based Multicarrier Modulation Demodulation and Implementation on DSP

小波包调制(WPM)是基于小波包理论的一种新型多载波调制方式。国内外以往的研究主要集中在方案研究和性能仿真方面,本文提出了DSP实现小波包调制的方案并用高速DSP芯片实现了小波包调制的快速算法及代码优化。实时运行结果表明:用高速DSP芯片可以满足WPM所需的大计算量和高速移动通信的要求。

Wavelet Packet Modulation (WPM) is a new kind of multicarrier modulation method based on the wavelet packet theory. The past research on WPM concerns mainly about scheme design and performance simulation. In this paper, the approach to realizing the WPM on DSP is presented; we also realize the WPM fast algorithm on a high performance DSP chip and optimize the code. Real-time running result indicates that using a high performance DSP can satisfy the requirement of large computation capability needed by WPM and high-speed mobile communication.