清空筛选条件
清空筛选条件

Combine multiplication filter in time and frequency domain

1 次查看（过去 30 天）
T
T 2017-3-6
回答： Star Strider 2017-3-6
Hello, I perform a FFT on my signal x, which yields X. Then I perform a multiplication in the frequency with my filter W, which yields the new signal A= X.*Y I perform a IFFT and get a. On a I do a multiplication with filter b to get the wanted signal c= a.*b
Is there a good way to combine these steps to get c from x in a faster way? Because I need to perform several of these. I know my filters, so they can be precalculated.

请先登录，再回答此问题。

回答（1 个）

Star Strider
Star Strider 2017-3-6
That is not a reliable method to do frequency domain filtering.
Use the Signal Processing Toolbox fftfilt function instead.

类别

在 Help Center 和 File Exchange 中查找有关 Fourier Analysis and Filtering 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