Difference between revisions of "Ricker wavelet"

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==External links==
 
==External links==
 +
* [http://docs.scipy.org/doc/scipy/reference/generated/scipy.signal.ricker.html scipy.signal.ricker] — Scipy function for a Ricker wavelet, which takes a scale parameter ''a'' = 1/2π''f'' (I think)
 
* [[Wikipedia:Mexican hat wavelet|Mexican hat wavelet]] — Wikipedia article
 
* [[Wikipedia:Mexican hat wavelet|Mexican hat wavelet]] — Wikipedia article
 
* [http://www.cseg.ca/publications/recorder/1994/09sep/sep94-choice-of-wavelets.pdf Ryan, 1994.] A choice of wavelets. CSEG Recorder September 1994.
 
* [http://www.cseg.ca/publications/recorder/1994/09sep/sep94-choice-of-wavelets.pdf Ryan, 1994.] A choice of wavelets. CSEG Recorder September 1994.

Revision as of 19:07, 30 April 2012

A model seismic wavelet.

The amplitude A of the Ricker wavelet with peak frequency f at time t is computed like so:

Example Ricker wavelet, as plotted by WolframAlpha

Sometimes the period (somewhat erroneously referred to occasionally as the wavelength) is given as 1/f, but since it has mixed frequencies, this is not quite correct, and for some wavelets is not even a good approximation. In fact, the Ricker wavelet has its sidelobe minima at

These minima have the value

See also

External links

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