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Communication Dans Un Congrès Année : 2014

T wave alternans detection in ECG using extended kalman filter and dualrate EKF

Résumé

T Wave Alternans (TWA) is considered as an indicator of Sudden Cardiac Death (SCD). In this paper for TWA detection, a method based on a nonlinear dynamic model is presented. For estimating the model parameters, we use an Extended Kalman Filter (EKF). We propose EKF6 and dualrate EKF6 approaches. Dualrate EKF is suitable for modeling the states which are not updated in all time instances. Quantitative and qualitative evaluations of the proposed method have been done on TWA challenge database. We compare our method with that proposed by Sieed et al. in TWA challenge 2008. We also compare our method with our previousproposed approach (EKF25-4obs). Results show that the proposed method can detect peak position and amplitude of T waves in ECG precisely. Mean and standard deviation of estimation error of our method for finding position of T waves do not exceed four samples (8 msec).
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Dates et versions

hal-01094984 , version 1 (14-12-2014)

Identifiants

  • HAL Id : hal-01094984 , version 1

Citer

Mahsa Akhbari, Mohammad Bagher Shamsollahi, Christian Jutten. T wave alternans detection in ECG using extended kalman filter and dualrate EKF. EUSIPCO 2014 - 22th European Signal Processing Conference, Sep 2014, Lisbonne, Portugal. ⟨hal-01094984⟩
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