Signal detection techniques applied to the Chandler wobble

Details Signal detection techniques applied to the Chandler wobble Signal detection techniques applied to the Chandler wobble

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....9010281g&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 90, Oct. 10, 1985, p. 10,281-10,290. DOE-sponsored research.

Physics

1

Earth Rotation, Harmonic Motion, Polar Wandering (Geology), Signal Detection, Linear Filters, Long Term Effects, Matched Filters, Time Series Analysis

Scientific paper

A sudden excitation event of the Chandler wobble should induce the earth's rotation pole to undergo damped harmonic motion. This type of motion has been searched for in the observations of the Chandler wobble using techniques based upon the concept of a matched filter. Although the signal detection techniques used here were not sensitive enough to detect any such isolated sudden excitation events, the result that was obtained is consistent with a randomly excited model of the Chandler wobble.

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