TY - GEN
T1 - Adaptive spectral analysis of non-stationary vibroarthrographic signals using autoregressive modelling
AU - Zhang, Y. T.
AU - Rangayyan, R. M.
AU - Frank, C. B.
AU - Bell, G. D.
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 1992
Y1 - 1992
N2 - Vibroarthrographic (VAG) signals are obtained during dynamic knee movements and hence are essentially non-stationary. Spectral analysis (the spectrum at a given joint angle or a given time for a constant joint angular velocity) of VAG signals can serve as a valuable tool for diagnosis of cartilage pathology in the joint. This paper presents the application of adaptive autoregressive modeling to VAG signal spectral analysis. Results indicate that this method can provide frequency and time (joint angle) information of the signal along with good frequency-time-localization at different knee joint angles. The adaptive AR spectral analysis technique provides better performance as compared to conventional linear prediction and Fourier methods.
AB - Vibroarthrographic (VAG) signals are obtained during dynamic knee movements and hence are essentially non-stationary. Spectral analysis (the spectrum at a given joint angle or a given time for a constant joint angular velocity) of VAG signals can serve as a valuable tool for diagnosis of cartilage pathology in the joint. This paper presents the application of adaptive autoregressive modeling to VAG signal spectral analysis. Results indicate that this method can provide frequency and time (joint angle) information of the signal along with good frequency-time-localization at different knee joint angles. The adaptive AR spectral analysis technique provides better performance as compared to conventional linear prediction and Fourier methods.
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U2 - 10.1109/IEMBS.1992.5761590
DO - 10.1109/IEMBS.1992.5761590
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 0780307852
VL - 6
T3 - Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
SP - 2566
EP - 2567
BT - Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992
PB - IEEE
T2 - 14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992
Y2 - 29 October 1992 through 1 November 1992
ER -