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Mathimatics-Numerical algorithms
matlab
Title:
matlab的pwelch函数
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Category:
matlab例程
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41.36kb
Update:
2020-11-16
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806770866@qq.com
Description:
Welch法对Bartlett法进行了两方面的修正,一是选择适当的窗函数w(n),并再周期图计算前直接加进去,加窗的优点是无论什么样的窗函数均可使谱估计非负。二是在分段时,可使各段之间有重叠,这样会使方差减小。 以下是Matlab代码示例:
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