US 12,228,694 B2
Systems and methods for radio frequency sensing of seismic events
Arthur G. Wilson, Melbourne, FL (US); and Vivek Krishna, West Melbourne, FL (US)
Assigned to Eagle Technology, LLC, Melbourne, FL (US)
Filed by Eagle Technology, LLC, Melbourne, FL (US)
Filed on Feb. 11, 2022, as Appl. No. 17/669,669.
Prior Publication US 2023/0258840 A1, Aug. 17, 2023
Int. Cl. G01V 3/12 (2006.01); H04B 7/185 (2006.01); H04W 56/00 (2009.01)
CPC G01V 3/12 (2013.01) [H04B 7/18519 (2013.01); H04W 56/005 (2013.01)] 18 Claims
OG exemplary drawing
 
6. A method for detecting or predicting a seismic event, comprising:
receiving, by a system, at least one communication signal using a carrier recovery component with a fixed location remote from a source of the at least one communication signal;
determining, by the system, one or both of (i) phase deviations of the at least one communication signal over time and (ii) differential propagation delays over two paths which the at least one communication signal traveled;
performing, by the system, operations to detect a pattern in one or both of the phase deviations and the differential propagation delays that indicates an occurrence of seismic activity with a first level of confidence;
using, by the system, the first level of confidence to detect or predict the seismic event; and
performing active monostatic sensing to detect phase shifts in an electromagnetic signal over time and to detect a pattern in the phase shifts that indicate an occurrence of seismic activity with an another level of confidence, wherein the active monostatic sensing comprises radar-based sensing, LaDAR-based sensing, or both radar-based sensing and LaDAR-based sensing.