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Noise Cancellation in Knee Joint Vibration Signals

Abstract

膝关节(knee-joint)是人体下肢的主要关节,是人体关节中最大的也是结构和功能最复杂的关节,同时也是人体最容易损伤的关节之一。膝关节损伤的早期诊断有助于预防退行性骨性关节炎(osteoarthritis),以便于患者能尽早接收治疗,减缓其关节退化的过程。膝关节摆动信号(vibroarthrographicsignal,VAG)是膝关节在伸展和弯曲运动中发出的摆动声音信号,是一种复杂的非平稳信号。膝关节摆动信号能够描述关节内损伤状况,是一种非侵入性的膝关节疾病诊断手段。然而,膝关节摆动信号在采集过程中会受到许多干扰,而这些干扰可能会导致错误的诊断结果。因此,在进行膝关节摆动信号诊断前,对信...The knee is the largest and most complex but also one of the most vulnerable joints in the human body. The detection of a knee-joint pathology at an early stage is important, as it helps slow down the degenerative process and prevents osteoarthritis. Vibroarthrographic (VAG) signal is a complex and non-stationary signal which is recorded during the bending motion of a knee. The stage of artifact r...学位:工学硕士院系专业:信息科学与技术学院_信号与信息处理学号:2332010115314

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