[mathcad] Re: DSP method

Author: David Burton Posted: Wed, 11 Jan 2006 13:15:23 -0800

Do a correlation and the time difference is where the peak of the
correlation occurs.
David B

Mark Smith wrote:

> I have 2 digitised signals (A2D sampled) which are very similar in
> shape but differ by a fixed time difference, can anyone suggest
> methods which will allow me to calculate what the time difference is?
> I have the feeling that if i can somehow use all the data I should
> get a much more accurate value than say just comparing a zero crossing
> of the 2 traces which I think will be far more susceptable to noise in
> the signal.
>
> Thanks in advance
> mark
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--
David Burton
Sirius Design & Technology, LLC.
www.siriusdt.com
2300 SW 2nd St., Suite D
McMinnville, OR 97128
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