权威例句
Fading in heterodyne OTDRSystems and methods for OTDR tracing and mappingOTDR in single-mode fibre at 1.55 ¿m using a semiconductor laser and PINFET receiverDistributed PMD measurement with a polarization-OTDR in optical fibersDistributed Vibration Sensor Based on Coherent Detection of Phase-OTDRCoherent self-heterodyne Brillouin OTDR for measurement of Brillouin frequency shift distribution in optical fibersPerformance improvement of a combined OTDR for distributed strain and loss measurement by randomizing the reference light polarizati...Distributed optical fiber vibration sensor based on spectrum analysis of Polarization-OTDR system.High Sensitivity Distributed Vibration Sensor Based on Polarization-Maintaining Configurations of Phase-OTDRFiber-Optic Distributed Strain and Temperature Sensing With Very High Measurand Resolution Over Long Range Using Coherent OTDR