Re: shift of a fractional number of samples

>
> Eric Chassande-Mottin wrote:
>  
>> I have written a function (
>> http://www.nabble.com/file/p18490379/fracshift.m code attached,
>> fracshift.m ) which performs the shift of a data vector
>> (e.g., a time-series) by a fractional number of samples. this is useful
>> in area such as antenna array processing and possibly
>> others (processing of stereo audio signals?). It is fairly
>> well documented, has the GPL and include three sanity checks.
>>
>>    
>
> Cute, and I can see the use of such a function for clock offset calculations
> in comms systems. I typically use simpler narrwband approximations for this
> functionality as I have to worry about how to implement it on an ASIC.
>
> The interpolator must introduce a colored noise to the signal, that depends
> on the signal given to the function, and the characteristics of the
> interpolating filter. Have you any idea of the magnitude of the error
> introduced with the default filter? If so it would probably makes sense to
> document it in the help string so that others kno what to expect. I'd check
> myself, but am writing from an EEE PC without a copy of Octave installed to
> check with.
>
> A couple of comments on the code itself, could you move the copyright to
> above the function definition, and the help text immediately following it
> with a single blank line between the copyright and the help text. This will
> be more consistent with the rest of Octave.
>
>
>
>  
>> As far as I know, there is no equivalent in the matlab world.
>> I would fit in the signal toolbox. Would you agree if I include it
>> there?
>>
>>    
>
>