ACOUSTIC METHOD AND SYSTEM FOR TRACKING OBJECTS AND IDENTIFYING TRENDS IN TRACKS OF TRACKED OBJECTS FOR BEHAVIOURAL AND RELATIONSHIP INFORMATION

Power-Aware DFOS Placement Strategy for Resilient Infrastructure Monitoring

Time-gated dual-comb sensing for long-distance high-resolution distributed fiber monitoring

OPTICAL PATH TESTING DEVICE AND OPTICAL PATH TESTING METHOD

PHOTONIC-INTEGRATED DISTRIBUTED ACOUSTIC SENSING SYSTEM WITH LONG-DISTANCE AND WIDE-FREQUENCY RESPONSE

SYSTEMS AND METHODS FOR OPERATING AN OVERHEAD ELECTRICAL LINE

System to Measure Coil Locations and Lengths on Aerial Fiber Cables by Distributed Fiber Sensing for Decision Making

METHODS AND SYSTEMS FOR IDENTIFYING ONE OR MORE COMMON OPTICAL PATH PORTIONS BETWEEN DEPLOYED OPTICAL FIBERS

CABLE LAYOUT DETECTION FOR SUBSEA CABLES BY DISTRIBUTED ACOUSTIC SENSING FOR OFFSHORE WIND FARMS

APPARATUS FOR PROCESSING DATA ASSOCIATED WITH AN OPTICAL FIBER

REMOTE SENSING FOR POWER GRID FUSE TRIPPING USING AI-BASED FIBER SENSING WITH AERIAL TELECOM CABLES

DISTRIBUTED FIBER OPTIC SENSOR PLACEMENT PROCEDURE FOR MULTI-CHANNEL SENSORS

INTEGRATED DISTRIBUTED FIBER OPTIC SENSING SYSTEM FOR ENHANCED OFFSHORE WIND TURBINE MONITORING USING PHYSICS-INFORMED MACHINE LEARNING ALGORITHMS

METHODS AND SYSTEMS FOR DISTRIBUTED FIBER OPTIC SENSING

OPTICAL FIBER SENSING SYSTEM AND OPTICAL FIBER SENSING METHOD

LEAKAGE DETECTION APPARATUS, LEAKAGE DETECTION METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM

Distributed Acoustic Sensing Based on Two-Dimensional Waveguides

SYSTEMS AND METHODS FOR DISTRIBUTED FIBER OPTIC SENSING OVER LIVE FIBERS

MONITORING SYSTEM, MONITORING APPARATUS, AND MONITORING METHOD

ANOMALY DETECTION IN DISTRIBUTED FIBER SENSING SYSTEMS USING LLMS

Bidirectional Optical Communication Fiber Sensing Control Device

TreeEventID A SYSTEM FOR ACCURATE TREE HAZARD DETECTION ON AERIAL TELECOM CABLES USING DISTRIBUTED FIBER SENSING AND NOVEL InfoNCE-BASED LEARNING

SIGNAL PROCESSING APPARATUS, METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM

SYSTEM AND METHOD FOR MONITORING OF AN OBJECT/STRUCTURE BY MEASUREMENT OF VIBRATIONS USING AN OPTICAL FIBER

SIGNAL PROCESSING DEVICE, VIBRATION DETECTION SYSTEM, AND SIGNAL PROCESSING METHOD

INVERTING EARTHQUAKE FOCAL MECHANISMS WITH DISTRIBUTED ACOUSTIC SENSING

APPARATUS FOR THE SPATIALLY RESOLVED MEASUREMENT OF A PHYSICAL VARIABLE

OPTICAL FIBER SENSING SYSTEM, OPTICAL FIBER SENSING APPARATUS, AND ROUTE DETERMINATION METHOD

INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND STORAGE MEDIUM

OPTICAL FIBER SENSING SYSTEM, OPTICAL FIBER SENSING DEVICE, AND ROAD MONITORING METHOD

EVENT DETECTION DEVICE, EVENT DETECTION SYSTEM, AND EVENT DETECTION METHOD

DETECTION SYSTEM, DETECTION APPARATUS, AND DETECTION METHOD

METHOD AND APPARATUS OF DISTRIBUTED ACOUSTIC SENSING

SIGNAL PROCESSING METHOD AND SIGNAL PROCESSING DEVICE

COORDINATED AND CORRELATED PROBE SIGNALS IN FIBER OPTIC SENSING SYSTEMS AND METHODS

OPTICAL FIBER SENSOR AND CHANGE DETECTION METHOD

VIBRATION MEASURING INSTRUMENT AND VIBRATION MEASUREMENT METHOD

LAID STATE IDENTIFYING SYSTEM, LAID STATE IDENTIFYING APPARATUS, AND LAID STATE IDENTIFYING METHOD

ADDRESSING DEVICE, OPTICAL FIBER ASSOCIATED WITH AN ADDRESSING DEVICE, AND SYSTEM AND METHOD FOR ADDRESSING OPTICAL FIBERS

OPTICAL FIBER SENSING SYSTEM, OPTICAL FIBER SENSING METHOD, AND VIBRATION DEVICE

Technique for analyzing a spectrum of backscattered light in an optical fiber

METHOD AND APPARATUS FOR SUPPRESSION OF NOISE DUE TO LOCAL OSCILLATOR INSTABILITY IN A COHERENT FIBER OPTICAL SENSOR

CORRECTION SYSTEM, CORRECTION APPARATUS, AND CORRECTION METHOD

POSITIONING METHOD OF ELECTRIC POLE AND ESTIMATING METHOD OF THE STATE OF OVERHEAD OPTICAL FIBER CABLE

FLEXIBLE AND RAPID DEPLOYABLE FIELD MONITORING SYSTEM

POST-PROCESSING METHOD TO EXTEND THE FUNCTIONAL RANGE OF OPTICAL BACKSCATTER REFLECTOMETRY IN EXTREME ENVIRONMENTS

OPTICAL FIBER SENSING SYSTEM, HOST SENSING DEVICE, REMOTE SENSING DEVICE, SENSING METHOD, AND SENSING DEVICE CONTROL METHOD

Method and Apparatus for Optical Sensing

Method and apparatus for optical sensing

DEVICES AND METHODS FOR MEASURING THE AMOUNT OF FREQUENCY MODULATION

LOSS ANALYSIS DEVICE AND LOSS ANALYSIS METHOD

AUTOMATIC FIBER LOSS DETECTION USING COHERENT OTDR

HIGH RESOLUTION 2D INDOOR LOCALIZATION WITH FIBER OPTIC SENSOR

Telecom Cable Tension Screening Technique Based on Wave Propagation and Distributed Acoustic Sensing

SYSTEM TO MEASURE COIL LOCATIONS AND LENGTHS ON AERIAL FIBER CABLES BY DISTRIBUTED FIBER SENSING

OPTICAL FREQUENCY DOMAIN REFLECTOMETRY APPARATUS AND METHOD

Self-heterodyne φ-OTDR system with free multi-spatial resolution

ENVIRONMENT INFORMATION ACQUISITION SYSTEM, ENVIRONMENT INFORMATION ACQUISITION METHOD, AND RECORDING MEDIUM

DISTRIBUTED STRAIN SENSING SYSTEM AND METHOD THEREOF

FIBER IDENTIFICATION WITHOUT CUT POINT USING DISTRIBUTED FIBER OPTIC SENSING

UNDERGROUND CABLE LOCALIZATION BY FAST TIME SERIES TEMPLATE MATCHING

SYSTEM FOR MEASURING MICROBENDS AND ARBITRARY MICRODEFORMATIONS ALONG A THREE-DIMENSIONAL SPACE

SNOW / WATER LEVEL DETECTION WITH DISTRIBUTED ACOUSTIC SENSING INTEGRATED ULTRASONIC DEVICE

Signal processing methods for an optical detection system

Wireline optical fiber sensing

System for measuring a plurality of physical parameters at a measurement point with a multimode optical fiber

Measurement system, measurement device, and measurement method to detect a direction in which fluid flows

LOCATION DETERMINATION OF DEPLOYED FIBER CABLES USING DISTRIBUTED FIBER OPTIC SENSING

OPTICAL FIBER SENSING SYSTEM, RELAY DEVICE, AND SENSING METHOD

Optical fiber sensing system, optical fiber sensing method, and optical fiber sensing apparatus

Cable system

Event statistic generation method and apparatus for intrusion detection

Street light operating status monitoring using distributed optical fiber sensing

Method and device for reconstructing a backscattered electromagnetic vector wave

MULTILINEAR DOMAIN-SPECIFIC DOMAIN GENERALIZATION

Optical fiber sensing system, optical fiber sensing device, and method for detecting pipe deterioration

Spatial averaging method for coherent distributed acoustic sensing

Monitoring system, monitoring device, monitoring method, and non-transitory computer-readable medium

Optical fiber sensor, and monitoring system

OPTICAL FIBER SENSING SYSTEM

Sensor signal processing apparatus and sensor signal processing method

Method and system for optical fiber sensing

Method and system for distributed fibre optic sensing

Distributed sensing apparatus

CIVIL ENGINEERING STRUCTURE MONITORING SYSTEM, CIVIL ENGINEERING STRUCTURE MONITORING APPARATUS, CIVIL ENGINEERING STRUCTURE MONITORING METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM

POST-PROCESSING METHOD TO EXTEND THE FUNCTIONAL RANGE OF OPTICAL BACKSCATTER REFLECTOMETRY IN EXTREME ENVIRONMENTS

Apparatus for obtaining wellbore pressure measurements

Method and apparatus for optical sensing

Distributed fibre optic sensing

Distributed sensing over switched optical fiber networks

Manhole position specification method and manhole position specification system

Method and apparatus for detecting a disturbance in a medium based on shifted filtered phase information for a plurality of fixed locations

Determining structural tomographic properties of a geologic formation

Fiber phase sensing using a ladder topology

Monitoring unit for monitoring a linear asset and method for monitoring a linear asset

Optical-fiber path searching method, optical-fiber path searching system, signal processing device, and program

Optical Time Domain Reflectometer And Optical Subassembly Having Optical Time Domain Reflectometry Function

OTDR receive device with connectivity feedback

Multi-parameter distributed fiber optic sensor system and methods of sensor manufacturing

Brillouin and rayleigh distributed sensor

Monitoring humidity measurement system and monitoring humidity measurement method

Event statistic generation method and apparatus for intrusion detection

Optical fiber sensor and analysis method

Optical fiber monitoring method, and optical fiber monitoring system

System for monitoring resin flow

Method and apparatus for suppression of noise due to local oscillator instability in a coherent fiber optical sensor

Distributed sensing over optical fiber carrying live, high-speed data

Method and apparatus for detecting a disturbance in a medium

Determining structural tomographic properties of a geologic formation

Determining structural tomographic properties of a geologic formation

Distributed fibre sensing system and vibration detection and positioning method therefor

Distributed optical fibre sensors

Integrated fiber-optic perturbation sensor

Optoelectronic device for distributed measurement by means of optical fibre

Optical fiber sensor device and optical fiber sensor system

Wireline Optical Fiber Sensing

Distributed sensing interrogator using single-mode fiber for multi-mode fiber interrogation

TEMPERATURE-CORRECTED DISTRIBUTED FIBER-OPTIC SENSING

Method and apparatus for detecting a disturbance in a medium using threshold based detection

Monitoring System

Method and apparatus for optical sensing

Determining structural tomographic properties of a geologic formation

High sensitivity fiber optic based detection

Measurement method, measurement device, and non-transitory recording medium

Method and system for high sensitivity in distributed fiber sensing applications

Determining structural tomographic properties of a geologic formation

Determining structural tomographic properties of a geologic formation

Optical fiber, optical sensor including optical fiber, method of manufacturing optical fiber, and deposition apparatus therefor

Multi-parameter distributed fiber optic sensor system and methods of sensor manufacturing

Method and apparatus for motion compensation in interferometric sensing systems

Brillouin and rayleigh distributed sensor

Tracking using distributed fibre optic sensing

OPTICAL SENSOR FOR DETECTING A PARAMETER OF INTEREST

Distributed pressure, temperature, strain sensing cable using metal wires with slot grooves and optical fibers in the slot grooves

Monitoring of fluid flow in an open channel using an optical fibre sensor

Optical fibre sensor system

Hybrid fiber optic cable for distributed sensing

Method of improving measurement speed of distributed optical fiber sensor by adopting orthogonal signals and system thereof

Dispersion correction in optical frequency-domain reflectometry

Distributed optical sensing using compressive sampling

Distributed acoustic sensing system with variable spatial resolution

Method and apparatus for optical sensing

Method and apparatus for detecting a disturbance in a medium

Detection of local property changes in an optical sensing fiber

Distributed acoustic sensing system based on delayed optical hybrid phase demodulator

Range extension for optical fiber sensing systems

Brillouin and rayleigh distributed sensor

Flexible substrate fiber optic sensing mat for distributed acoustic sensing

Triggering with optical shape sensing fiber

Multi-parameter sensing based on few-mode fiber Bragg gratings using femtosecond IR laser

Fibre optic distributed sensing

Optical fibre sensor system

Distributed sensing systems and methods with I/Q data balancing based on ellipse fitting

Optical fiber, optical sensor including optical fiber, method of manufacturing optical fiber, and deposition apparatus therefor

Identification of features on an optical fiber using a distributed temperature sensor

Optical fiber sensor, seismic prospecting method, method of measuring distribution of petroleum/natural gas reservoir layer, strain detection method, and method of specifying position of a fissure in stratum

Distributed optical fibre sensor

Method and apparatus for optical sensing

Optical sensor and method of use

Method and apparatus for optical sensing

Fiber measurement with pulse shaping

Abnormality detection system and abnormality detection method

Abnormality detection system and abnormality detection method

Method and system using wavelength division multiplexing for eliminating and reducing light diffusion and light reflection interference in interference path

Distributed optical fibre sensor

Method and apparatus for optical sensing

Distributed optical fibre sensor

Pipeline constriction detection

Fibre optic cable for acoustic/seismic sensing

Dispersion correction in optical frequency-domain reflectometry

Three-dimensional position measurement system

Abnormality detection system and abnormality detection method

Long distance optical fiber sensing system and method

Method and apparatus for acoustic sensing using multiple optical pulses

Fibre optic sensing

Seismic acquisition system including a distributed sensor having an optical fiber

Fiber optic sensing apparatus including fiber gratings and method for sensing parameters involving different parameter modalities

Downhole time domain reflectometry with optical components

Method for measuring the length of an electric cable that uses an optical fibre element as a sensor

System for monitoring flow of a matrix material in a molding tool using a scattering optical signal transmitted along at least one optical fiber during production of a component

Optical sensing system and method

Distributed optical fibre sensor

Fiber optic sensor thermally matched support tubes for distributed fiber optic sensing

Apparatus for deriving measurement signals from fibre optic distributed sensors

Fibre optic distributed sensing

OPTICAL METHOD AND DEVICE FOR A SPATIALLY RESOLVED MEASUREMENT OF MECHANICAL PARAMETERS, IN PARTICULAR MECHANICAL VIBRATIONS BY MEANS OF GLASS FIBERS

Optical sensor and method of use

Method and apparatus for optical sensing

Seismic acquisition system including a distributed sensor having an optical fiber

Use of fiber optic sensor techniques for monitoring and diagnostics of large AC generators

Distributed Optical Fibre Sensor

Distributed fibre optic sensing for event detection

Long distance optical fiber sensing system and method

Method and apparatus for distributed sensing utilizing optical scattering in optical waveguides

Method and apparatus for acoustic sensing using multiple optical pulses

Method and system for fiber-optic monitoring of spatially distributed components

Fiber optic sensing system, method of using such and sensor fiber

Methods of making and operating a fiber optic sensing device

Method and apparatus for acoustic sensing using multiple optical pulses

FBG sensor system

EFFICIENT DISTRIBUTED SENSOR FIBER

Optical position sensor

Fiber optic sensing device and method of making and operating the same

Efficient distributed sensor fiber

Distributed fiber optic sensing systems and methods

High resolution and high efficiency photonic air data detection

OTDR receive device with connectivity feedback