Howtosignalprocessing
- What is resampling a signal?
- Is resampling the same as interpolation?
- How to resample a signal in Matlab?
- How to resample non uniform data matlab?
What is resampling a signal?
resample Function
One resampling application is the conversion of digitized audio signals from one sample rate to another, such as from 48 kHz (the digital audio tape standard) to 44.1 kHz (the compact disc standard).
Is resampling the same as interpolation?
Resampling is used to either increase the sample rate (make the image larger) or decrease it (make the image smaller). Interpolation is the process of calculating values between sample points. So, if you resample an image you can use interpolation to do it.
How to resample a signal in Matlab?
y = resample( x , tx , fs ) uses a polyphase antialiasing filter to resample the signal at the uniform sample rate specified in fs . y = resample( x , tx , fs , p , q ) interpolates the input signal to an intermediate uniform grid with a sample spacing of ( p / q )/ fs .
How to resample non uniform data matlab?
To resample a nonuniformly sampled signal, you can call resample with a time vector input. The next example converts our original signal to a uniform 44.1 kHz rate. You can see that our resampled signal has the same shape and size as the original signal.
