| 基于Matlab的Welch法功率谱估计 |
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| 引用本文： | 刘嵩,罗敏.基于Matlab的Welch法功率谱估计[J].湖北民族学院学报(哲学社会科学版),2007,25(2):215-216. |
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| 作者姓名： | 刘嵩 罗敏 |
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| 作者单位： | 湖北民族学院信息工程学院 湖北恩施445000(刘嵩)，湖北民族学院理学院 湖北恩施445000(罗敏) |
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| 摘 要： | 在经典谱估计领域,由Welch提出的修正周期图法获得了有效的应用,在多数情况下,其频率分辨率、估计方差能满足实际应用.运用Matlab软件进行Welch算法仿真与分析,从而得出一些有价值的结论.
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| 关 键 词： | 功率谱估计 周期图 窗函数 分辨率 |
| 文章编号： | 1008-8423（2007）02-0215-02 |
| 收稿时间： | 2006-12-11 |
| 修稿时间： | 2006-12-11 |
Analysis of Welch Method in PSE Based on Matlab |
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| LIU Song,LUO Min.Analysis of Welch Method in PSE Based on Matlab[J].Journal of Hubei Institute for Nationalities(Natural Sciences),2007,25(2):215-216. |
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| Authors: | LIU Song LUO Min |
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| Institution: | 1. School of Information Engineering, Hubei Institute for Nationalities, Enshi 445000, China ; 2. School of Science, Hubei Institute for Nationalities, Enshi 445000, China |
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| Abstract: | In the field of classical chart,the amended periodic table put forward by Welch is proved to be effective in application.Under many conditions,its frequency distinction and estimate variance can satisfy the practical application.This paper gives an example to simulate them with Matlab,analyses the performances of these methods and draws some useful conclusions. |
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| Keywords: | power spectrum estimation periodic table window function resolution |
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