Title :
The revision of the recursive windowing algorithm for event-synchronous cancellation of the heart interference in biomedical signals
Author :
Deng, Y.-C. ; Wolf, W.
Author_Institution :
ETI, Bundeswehr Munchen. Univ., Neubiberg, Germany
Abstract :
The revised Hanning windowing algorithm for recursively computing the second-order information (autocorrelation and cross correlation coefficients) which is needed for the cancellation of recurrent interferences such as the heart interferences in biomedical signals is derived, and the dependence of performance on the effective window length L is investigated. The method is applied to the cancellation of the heart interference in a diaphragmatic electromyogram (EMG). Experimental results showed the effect of the window length L on the performance of an event-synchronous interference canceller and the better quality of this recursive structure canceller
Keywords :
adaptive filters; adaptive signal processing; correlation methods; electrocardiography; electromyography; filtering theory; interference suppression; medical signal processing; recursive filters; synchronisation; ECG; EMG; adaptive event-synchronous interference filter; autocorrelation coefficient; biomedical signals; cross correlation coefficient; diaphragmatic electromyogram; event-synchronous cancellation; event-synchronous interference canceller; experimental results; heart interference; recurrent interference cancellation; recursive structure canceller; recursive windowing algorithm; revised Hanning windowing algorithm; second-order information; window length; Adaptive filters; Autocorrelation; Electrocardiography; Electromyography; Heart; Interference cancellation; Lattices; Magnetic separation; Recursive estimation; Resonance light scattering;
Conference_Titel :
Signal Processing, 1996., 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-2912-0
DOI :
10.1109/ICSIGP.1996.571265
