Present order tracking methods for solving noise and vibration problems are reviewed, both FFT and re-sampling based order tracking methods. The time variant discrete Fourier transform (TVDFT) is developed as an alternative order tracking method. This method contains many advantages which the current order tracking methods do not possess. This method has the advantage of being very computationally efficient as well as the ability to minimize leakage errors. The basic TVDFT method may also be extended to a more complex method through the use of an orthogonality compensation matrix (OCM) which can separate closely spaced orders as well as separate the contributions of crossing orders. The basic TVDFT is a combination of the FFT and the re-sampling based methods. This method can be formulated in several different manners, one of which will give results matching the re-sampling based methods very closely. Both analytical and experimental data are used to establish the behavioral characteristics of this new method.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    The Time Variant Discrete Fourier Transform as an Order Tracking Method


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE Noise and Vibration Conference and Exposition ; 1997



    Publication date :

    1997-05-20




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English


    Keywords :


    The Time Variant Discrete Fourier Transform as an order tracking method

    Blough,J.R. / Brown,D.L. / Vold,H. et al. | Automotive engineering | 1997


    The Time Variant Discrete Fourier Transform as an Order Tracking Method

    Blough, J. R. / Brown, D. L. / Vold, H. et al. | British Library Conference Proceedings | 1997


    Implementation of the time variant discrete Fourier transform as a real-time order tracking method

    Dilworth,B.J. / Blough,J.R. / Michigan Technological Univ.,US | Automotive engineering | 2007


    Implementation of the Time Variant Discrete Fourier Transform as a Real-Time Order Tracking Method

    Dilworth, B. J. / Blough, J. R. / Society of Automotive Engineers | British Library Conference Proceedings | 2007


    Implementation of the Time Variant Discrete Fourier Transform as a Real-Time Order Tracking Method

    Dilworth, Brandon J. / Blough, Jason R. | SAE Technical Papers | 2007