US 11,693,137 B2 · Systems and methods for detecting mechanical disturbances using underwater optical cables

Abstract

Systems and methods are provided for generating a model for detection of seismic events. In this regard, one or more processors may receive from one or more stations located along an underwater optical route, one or more time series of polarization states of a detected light signal during a time period. The one or more processors may transform the one or more time series of polarization states into one or more spectrums in a frequency domain. Seismic activity data for the time period may be received by the one or more processors, where the seismic activity data include one or more seismic events detected in a region at least partially overlapping the underwater optical route. The one or more processors then generate a model for detecting seismic events based on the one or more spectrums and the seismic activity data.

Claims20

Dependent claims

A method of evaluating undersea seismic activity based on data received from a plurality of stations located along a network of underwater optical cables having a fixed speed of propagation at which optical signals propagate through the network, the method comprising:

receiving, by one or more processors, from a first station of the plurality of stations, a first optical signal indicating a seismic wavefront reaching the first station at a first time, the first station located at a first location;
receiving, by the one or more processors, from a second station of the plurality of stations, a second optical signal indicating the seismic wavefront reaching the second station at a second time, the second station located at a second location;
and
estimating, by the one or more processors, one or both of a time of origin or a location of origin of the seismic wavefront using a machine learning model based on the first optical signal, the second optical signal, and the fixed speed of propagation, wherein the machine learning model is trained on prior examples of seismic activity.

1 more element

A system for evaluating undersea seismic activity based on data received from a plurality of stations located along a network of underwater optical cables having a fixed speed of propagation at which optical signals propagate through the network, the system comprising:

one or more processors configured to:
receive from a first station of the plurality of stations, a first optical signal indicating a seismic wavefront reaching the first station at a first time, the first station location at a first location;
receive from a second station of the plurality of stations, a second optical signal indicating the seismic wavefront reaching the second station at a second time, the second station located at a second location;
and
estimate one or both of a time of origin or a location of origin of the seismic wavefront using a machine learning model based on the first optical signal, the second optical signal, and the fixed speed of propagation, wherein the machine learning model is trained on prior examples of seismic activity.

2 more elements

Dependencies are inferred from the claim text.

Systems and methods for detecting mechanical disturbances using underwater optical cables

Life of this patent

Systems and methods for detecting mechanical disturbances using underwater optical cables

Life of this patent

Abstract

Claims20