Robust and intelligent bearing estimation

Details Robust and intelligent bearing estimation Robust and intelligent bearing estimation

1998-12-17

2000-04-11

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Echo systems

Distance or direction finding

367118, 342195, G01S 1500

Patent

active

060495103

ABSTRACT:
A method of bearing estimation comprising quadrature digital filtering of event observations, constructing a plurality of observation matrices each centered on a time-frequency interval, determining for each observation matrix a parameter such as degree of polarization, linearity of particle motion, degree of dyadicy, or signal-to-noise ratio, choosing observation matrices most likely to produce a set of best available bearing estimates, and estimating a bearing for each observation matrix of the chosen set.

REFERENCES:
patent: 5495256 (1996-02-01), Piper
patent: 5610612 (1997-03-01), Piper
patent: 5949739 (1999-09-01), Reese
Jurkevics, A., "Polarization Analysis of Three-Component Array Data," Seismological soc of Amer, vol. 78, No. 5, pp 1725-1753 (Oct. 1988).
Lilly, Jonathan M., et al., "Multiwavelet spectral and Polarization Analyses of Seismic Records," Geophys. J., Int., vol. 122, pp 1001-1021 (1995).
Vildale, J.E., "Complex Polarization Analysis of Particle Motion," Seismological Soc. of Amer., vol. 76, No. 5, pp 1393-1405 (Oct. 1986).

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