System for near real-time crustal deformation monitoring

Details System for near real-time crustal deformation monitoring System for near real-time crustal deformation monitoring

1977-12-21

1979-10-09

Blum, Theodore M.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343100ME, H04B 700

Patent

active

041707761

ABSTRACT:
A system for use in detecting earth crustal deformation using an RF interferometer technique for such purposes as earthquake predictive research and eventual operational predictions. A lunar based RF transmission or transmissions from earth orbiting satellites are received at two locations on Earth, and a precise time dependent phase measurement is made of the RF signal as received at the two locations to determine two or three spatial parameters of the antenna relative positions. The received data are precisely time tagged and land-line routed to a central station for real-time phase comparison and analysis. By monitoring the antenna relative positions over an extended period of months or years, crustal deformation of the earth can be detected.

REFERENCES:
shapiro et al., Geo. Applications of Long-Baseline Radio Interferometry, Earthquake Disp. Fields & The Rotation of Earth, Reidel Pub. Co., Holland, 1970, pp. 284-301.

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