清空筛选条件
清空筛选条件

EEG is a voltage signal in time domain (voltage amplitude vs time). how can we convert this EEG into amplitude vs frequency?

7 次查看（过去 30 天）
VENKATA PHANIKRISHNA B
回答： Daniel M 2019-11-9
EEG is a voltage signal in time domain (voltage amplitude vs time). how can we convert this EEG into amplitude vs frequency? for getting sub-bands such as alpha, beta, theta, gamma and delta which one is best ? means
  • "voltage amplitude vs time" EEG signally is best ? or
  • "amplitude vs frequency" EEG signal is best ?.

请先登录，再回答此问题。

回答（1 个）

Daniel M
Daniel M 2019-11-9
To convert from the time domain to the frequency domain, use the fft function. Though you might actually get more use out of the short time Fourier transform (STFT) using the spectrogram function. This gives you amplitude vs frequency for each time window that you choose. Then you could average the results over the frequency bands of interest.

类别

在 Help Center 和 File Exchange 中查找有关 EEG/MEG/ECoG 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