two pass split window filter

15 次查看（过去 30 天）
ihab
ihab 2018-4-6
回答： Mohammad Khishe 2021-2-4
i have spectrogram time X frequency matrix ,with peaks that i want, and noise that i dont want, so, how to use two pass split window filter on the signal to make it more clean.

请先登录，再回答此问题。

回答（1 个）

Mohammad Khishe
Mohammad Khishe 2021-2-4
you can use following commands:
%# some random data resembling yours
x = randn(100,1);
x(75) = -14; x(25) = 20;
subplot(211), plot(x)
%# zero out everything but the high peaks
mu = mean(x); sd = std(x); Z = 3;
x( abs(x-mu) < Z*sd ) = 0;
subplot(212), plot(x)

类别

在 Help Center 和 File Exchange 中查找有关 Descriptive Statistics 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by