Title :
Design and implementation of an efficient architecture for higher order statistics with DWT
Author :
Lih-Yih Chiou ; Lee, Hsieh-Wei ; Lei, Sheau-Fang ; Liu, Bin-Da
Author_Institution :
Dept. of Electr. Eng., National Cheng Kung Univ., Tainan, Taiwan
Abstract :
Higher order statistical metric has the capability to extract the signal feature of non-stationary waveforms that the second order statistics can´t. This paper proposes an efficient architecture for the frequency domain kurtosis metric, which is an example of the higher order statistics using DWT bit streams. The hardware design methodology emphasizes efficiency on area and time to meet the technological challenges of compactness and portability for biomedical applications.
Keywords :
VLSI; circuit layout; digital signal processing chips; discrete wavelet transforms; hardware description languages; hardware-software codesign; higher order statistics; logic circuits; low-power electronics; spectral analysis; DWT bit streams; biomedical applications; frequency domain kurtosis metric; higher order statistics; nonstationary waveforms; signal feature extraction; Acoustic measurements; Acoustic waves; Biomedical measurements; Discrete wavelet transforms; Feature extraction; Frequency domain analysis; Hardware; Higher order statistics; Signal processing algorithms; Wavelet transforms;
Conference_Titel :
VLSI Design, Automation and Test, 2005. (VLSI-TSA-DAT). 2005 IEEE VLSI-TSA International Symposium on
Print_ISBN :
0-7803-9060-1
DOI :
10.1109/VDAT.2005.1500077
