| 功率谱估计的Welch方法中的窗函数研究 |
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| 引用本文： | 范瑜,邬正义.功率谱估计的Welch方法中的窗函数研究[J].常熟理工学院学报,2000,14(4):36-39. |
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| 作者姓名： | 范瑜 邬正义 |
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| 作者单位： | 常熟高等专科学校物理系!常熟215500 |
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| 摘 要： | 在经谱估计领域，由Ｗｅｌｃｈ提出的修正周期图法得有效的应用。本文使用Ｍａｔｌａｂ对于Ｗｅｌｃｈ方法的估计特征进行了分析，着分析了窗函数的影响，指出了它的优势与不足。
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| 关 键 词： | 谱估计 窗函数 经典谱估计 信号处理 |
The Research of Welch Method in Estimate of Power Spectram |
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| FAN Yu,WU Zhen_yi.The Research of Welch Method in Estimate of Power Spectram[J].Journal of Changshu Institute of Technology,2000,14(4):36-39. |
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| Authors: | FAN Yu WU Zhen_yi |
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| Abstract: | In the field of classical chart, Welch put forward to amend periodic table,which is proved to be effective in appliance. It is simple and easy to understand ,besides ,it is convenient to calculate.Under many conditions,its frequency distinction and estimate variance can satisfy the practical appliance.This paper is about the analysis of characteristics of Welch's estimate chat ,its advantages and disadvantages as well. |
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| Keywords: | Welch Power Spectram estimation Window function |
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