Difference between revisions of "Contributions:DiffFilter"
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Base at which to unwrap numerical deltas. 2*pi ( = 6.283185307179586232)
Base at which to unwrap numerical deltas . 2*pi ( = 6.283185307179586232) base phase differenceswhen unwrapped at 2*pi, the first derivative of yields 2*pi .
Latest revision as of 16:28, 28 March 2012
Take the derivative of a continuous time-series input wrt. time
0 = disable; 1 = first derivative; 2 = second derivative; etc
Base at which to unwrap numerical deltas while computing the first derivative. 2*pi ( = 6.283185307179586232) would be the base appropriate for unwrapping phase differences. For example, HilbertFilter with OutputSignal=2 outputs instantaneous phase: when unwrapped at 2*pi, the first derivative of this yields 2*pi * instantaneous frequency.
Select whether to return raw sample-to-sample numerical deltas, or to divide these by the time delta in seconds to approximate a true derivative.