A time-varying instantaneous frequency fault features extraction method of rolling bearing under variable speed
Baojia Chen, Zhichao Hai, Xueliang Chen, Fafa Chen, Wenrong Xiao, Nengqi Xiao, Wenlong Fu, Qiang Liu, Zhuxin Tian, Gongfa Li
Topics & Concepts
DemodulationInstantaneous phaseFault (geology)Bearing (navigation)Control theory (sociology)Time–frequency analysisTime–frequency representationNoise (video)SIGNAL (programming language)Hilbert–Huang transformVibrationSignal processingFeature extractionHilbert transformShort-time Fourier transformComputer scienceAcousticsFourier transformEngineeringMathematicsElectronic engineeringWhite noiseArtificial intelligencePhysicsFourier analysisSpectral densityMathematical analysisTelecommunicationsDigital signal processingImage (mathematics)GeologyProgramming languageControl (management)SeismologyChannel (broadcasting)RadarMachine Fault Diagnosis TechniquesGear and Bearing Dynamics AnalysisFault Detection and Control Systems