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poster · 2019-12-10, 20:30

如何在Matlab中对频谱图应用水平均值滤波器？

回答：

有很多方法。例如，您可以使用conv 。

对于一维频谱图：

%# create some sample data spectrogram = randn(1,1000); %# row vector of length 1000 with random values %# define filter window windowSize = 5; %# size of filter window %# filter filteredSpectrogram = conv(spectrogram,ones(1,windowSize)/windowSize,'same'); 对于二维频谱图（和仅水平滤波器）

%# create some sample data spectrogram = randn(100,1000); %# 100 rows, 1000 cols of random values %# define filter window windowSize = 5; %# size of filter window %# filter filteredSpectrogram = conv2(spectrogram,ones(1,windowSize)/windowSize,'same');

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2019-12-10, 20:30	#1
poster 高级会员注册日期: 2019-11-21 帖子: 3,006 声望力: 66	水平均值滤波器的Matlab代码如何在Matlab中对频谱图应用水平均值滤波器？回答：有很多方法。例如，您可以使用conv 。对于一维频谱图： %# create some sample data spectrogram = randn(1,1000); %# row vector of length 1000 with random values %# define filter window windowSize = 5; %# size of filter window %# filter filteredSpectrogram = conv(spectrogram,ones(1,windowSize)/windowSize,'same'); 对于二维频谱图（和仅水平滤波器） %# create some sample data spectrogram = randn(100,1000); %# 100 rows, 1000 cols of random values %# define filter window windowSize = 5; %# size of filter window %# filter filteredSpectrogram = conv2(spectrogram,ones(1,windowSize)/windowSize,'same'); 更多&回答...