matlab enframe
时间: 2023-10-25 16:10:28 浏览: 34
In MATLAB, the enframe function is used to segment a time-domain signal into overlapping frames. This function takes in the input signal and a window length and produces a matrix where each column represents a frame of the signal, with overlapping portions between adjacent frames.
The syntax for using enframe function in MATLAB is:
frames = enframe(signal, window, overlap);
where
- signal: the input signal to be segmented into frames
- window: the length of each frame (in samples)
- overlap: the number of samples to overlap between adjacent frames (usually a fraction of window length)
The output 'frames' is a matrix of size N x M, where N is the window length and M is the number of frames. Each column of this matrix represents a frame of the input signal.
Example:
Suppose we have an input signal 'x' of length 1000 samples and we want to segment it into frames of length 256 samples with 50% overlap. We can use the following code:
window = 256;
overlap = window/2; % 50% overlap
frames = enframe(x, window, overlap);
This will produce a matrix 'frames' of size 256 x 1752, where each column represents a frame of the input signal with overlapping portions between adjacent frames.
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