On 4/29/2010 10:23:36 AM, dmradcliff wrote:
>I have data collected from an
>oscilloscope and I am trying
>to create an ideal sine wave
>to match the collected data.
>I need to solve for amplitude,
>frequency, phase, and DC
>offset. (n = amplitude * sine
>(frequency * x + phase) +
>offset)
>
...
>Thanks,
>Dale
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Alternately and in conjonction to "ideal sine", it's probably possible to run a spline smoothlet. Comparing both will result in an analytical "deviation function" which is in fact of more indicative value than a simple residual bar plot. All discrete filtering/smoothing do distort. Your project as a typical demo might takes only few minutes.
jmG