Experimental Research on the Rule of Frequency-Band Derangement in Wavelet Packet Transform

Author

Ying, Lin ; Jin-Yan, Luo

Author_Institution

South China Univ. of Technol., Guangzhou

fYear

2007

fDate

May 30 2007-June 1 2007

Firstpage

3099

Lastpage

3102

Abstract

The frequency-band derangement phenomenon of wavelet packet decomposition nodes, resulted from the defects of the DWT fast algorithms, is discussed. The rule of frequency-band derangement of wavelet packets nodes is studied with the method for signal processing experiments based on wavelet packets analysis, and then the means of adjusting frequency-band nodes in sequence is exploited. It is also found that the sequence of the adjusted wavelet packet nodes is the same as the Graycode, so with the idea of adjusting wavelet packet nodes, a new simple Gray coding algorithm is proposed.

Keywords

Gray codes; discrete wavelet transforms; signal processing; DWT fast algorithms; Gray coding algorithm; frequency-band derangement rule; frequency-band nodes; signal processing; wavelet packet transform; Convolution; Educational institutions; Filters; Frequency conversion; Signal analysis; Signal processing; Signal processing algorithms; Wavelet analysis; Wavelet packets; Wavelet transforms; frequency-band derangement; signal processing; wavelet packet transform;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Automation, 2007. ICCA 2007. IEEE International Conference on

Conference_Location

Guangzhou

Print_ISBN

978-1-4244-0818-4

Electronic_ISBN

978-1-4244-0818-4

Type

conf

DOI

10.1109/ICCA.2007.4376931

Filename

4376931