| 经典功率谱估计Welch法的MATLAB仿真分析 |
| |
| 引用本文： | 杨晓明,晋玉剑,李永红. 经典功率谱估计Welch法的MATLAB仿真分析[J]. 电子测试, 2011, 0(7): 101-104 |
| |
| 作者姓名： | 杨晓明 晋玉剑 李永红 |
| |
| 作者单位： | 中北大学,太原,030051 |
| |
| 摘 要： | 周期图法是经典功率谱估计中的一种基本方法,但是在实际应用中难以同时保证良好的分辨力和方差性能.因此本文以周期图法原理为切入点,对改进后的Welch算法进行研究,并借助MATLAB软件强大的信号处理与数值分析能力,对Welch算法的谱估计分辨力、方差等性能进行仿真分析.讨论了不同数据分段长度、不同窗函数类型等因素对算法性...
|
| 关 键 词： | 经典功率谱估计 周期图法 Welch法 MATLAB仿真 |
MATLAB simulation and analysis of the Welch method in the classical power spectrum estimation |
| |
| Yang Xiaoming,Jin Yujian,Li Yonghong. MATLAB simulation and analysis of the Welch method in the classical power spectrum estimation[J]. Electronic Test, 2011, 0(7): 101-104 |
| |
| Authors: | Yang Xiaoming Jin Yujian Li Yonghong |
| |
| Affiliation: | Yang Xiaoming,Jin Yujian,Li Yonghong (The North University of China,Taiyuan 030051,China) |
| |
| Abstract: | Periodogram is a basic method of the classical power spectrum estimation, but it is difficult to simultaneously ensure a well resolution and variance performance in practice. Therefore, this article set the periodogram principle as the entry point and the improved method of Welch has been researched. Spectrum estimation resolution and variance of Welch algorithm was simulated with matlab software which has powerful signal processing and numerical analysis capability. Influence on algorithm performance of se... |
| |
| Keywords: | classical power spectrum estimation periodogram method Welch Method MATLAB Simulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
