Computation of whistler wave normals using a combined matched filtering and parameter estimation technique

Details Computation of whistler wave normals using a combined matched filtering and parameter estimation technique Computation of whistler wave normals using a combined matched filtering and parameter estimation technique

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jatp...49.1075l&link_type=abstract

Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169), vol. 49, Nov.-Dec. 1987, p. 1075-1079. Research supported by th

Physics

Matched Filters, Parameter Identification, Plane Waves, Very Low Frequencies, Whistlers, Collisionless Plasmas, Computerized Simulation, Geomagnetism, Maxwell Equation, Signal To Noise Ratios

Scientific paper

A new method is presented for computing the wave normal directions of deterministic VLF signals that can be approximated by plane waves. The a priori information about the frequency-time behavior of the signal is exploited by a matched filtering and subsequent parameter estimation technique. The method was developed basically to determine wave normal directions of whistlers from wave field components measured on-board. After an outline of the method, results obtained for simulated whistlers are presented that demonstrate the superiority of the new method over the cross-product and Means methods.

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