Non-stationary signal decomposition

3 次查看（过去 30 天）
parham kianian
parham kianian 2020-2-18
suppose f(t) is a non-stationary signal which can be expressed as follow:
f(t) = A1(t)*sin(w1*t) + A2*sin(w2*t) + ... + An(t)sin(wn*t), where 0<= t <= td.
How can I find each Ai corresponding to circular frequency wi?
Is there any MATLAB function which can be employed for this purpose?
emd function decompose a signal to its intrinsic mode functions (IMF) and each IMF has the same length as original signal. I am looking for something like emperical mode decomposition but it should be capable to extract A1, A2, ..., An.

请先登录，再回答此问题。

回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Signal Processing Toolbox 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