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应用科学学报 ›› 2003, Vol. 21 ›› Issue (2): 157-160.

• 论文 • 上一篇    下一篇

基于连续小波变换的功率谱估计方法

徐科军, 李永三   

  1. 合肥工业大学自动化研究所 安徽 合肥 230009
  • 收稿日期:2002-02-11 修回日期:2002-10-09 出版日期:2003-06-10 发布日期:2003-06-10
  • 作者简介:徐科军(1956-),男,江苏无锡人,研究员,博导.
  • 基金资助:
    高等学校骨干教师资助计划项目(教育部教技司[2000]65号)

The Power Spectrum Estimation Method Based on Continuous Wavelet Transformation

XU Ke-jun, LI Yong-san   

  1. Institute of Automation, Hefei University of Technology, Hefei 230009, China
  • Received:2002-02-11 Revised:2002-10-09 Online:2003-06-10 Published:2003-06-10

PDF

224

被引次数

36

摘要： 利用连续小波变换的带通特性,参照功率谱模拟估计方法的思路,对信号进行功率谱估计。介绍了基于连续小波变换的功率谱估计的基本原理,给出程序流程和仿真结果,讨论其特点,并与基于FFT的谱估计方法进行了比较。

关键词: 快速傅里叶变换, 连续小波变换, 功率谱估计

Abstract: According to the idea of the power spectrum analog analysis method, the power spectrum of signal is estimated by using the continuous wavelet transformation. The basic principle of the power spectrum estimation is presented and the program flow given. The simulation results which are compared with the power spectrum estimation method based on FFT are presented in this paper.

Key words: continuous wavelet transformation, fast Fourier transformation (FFT), power spectrum estimation

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