Sinc Resample

SincResample resamples signals to arbitrary lengths/frequencies and/or timeshifts them

Description

If the input is a bandlimited signal containing components at DC - 0.5Fs where Fs is the sample rate, SINCRESAMPLE will return the signal that would have been seen with a higher sampling rate (and the same filter settings). The algorithm depends on the fact that the bandlimited signal is completely defined when sampling at Fs.

SINCRESAMPLE returns the data convolved with a set of time-shifted windowed sinc functions, one for each of the samples [1..size(x,1)] in the input signal. End-effects are reduced by adding a reflected and mirrored copy of the data at the beginning and end of each column before resampling.
Note that points at the end of Y (and/or beginning if SHIFT is negative) will be extrapolated beyond the boundaries of X.
 
SINCRESAMPLE is a generalization of the method discussed in:
T.Blanche & N.V.Swindale (2006)
Nyquist interpolation improves neuron yield in multiunit recordings
Journal of Neuroscience Methods 155, 81-91
http://dx.doi.org/doi:10.1016/j.jneumeth.2005.12.031

• MATLAB release: MATLAB 7.2 (R2006a)

[Mike eMike]

 

[cho yong-soo]

I am korean user that is interested in this file

[karan vvv]

ok

[James Carraeo]

Useful, thanks.

[Ted Pavlic]

The description of this script makes it sound like an improved version fo the INTERPFT function (which just calls fft, pads, and then calls ifft).

I put together a modified INTERPFTW that allows you to resample aliases from different Nyquist windows. In other words, instead of padding the FFT purely at its ends, it splits the padding so that some is at DC and some is at the ends (i.e., it uses a bandpass filter rather than a low-pass filter).

http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=20524&objectType=file

I imagine that you could make a similar modification to your script.

[kk KKsingh]

It will be much better if it is posted with some example