A novel demodulation method with a reference signal for operational modal analysis and baseline-free damage detection of a beam under random excitation
Linfeng Lyu, Ke Yuan, Weidong Zhu
Topics & Concepts
Laser Doppler vibrometerBeam (structure)DemodulationModal analysisOpticsLaser scanning vibrometrySIGNAL (programming language)AcousticsPhysicsDoppler effectVibrationNatural frequencyReference beamLaserEngineeringComputer scienceElectrical engineeringDistributed feedback laserProgramming languageChannel (broadcasting)AstronomyStructural Health Monitoring TechniquesOptical measurement and interference techniquesUltrasonics and Acoustic Wave Propagation