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Designing better adaptive sampling algorithms for ECG Holter systems

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3 Author(s)
Tai, S.-C. ; Inst. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan ; Chang, C.W. ; Chen, C.F.

Let Ψ be any adaptive sampling algorithm that can run in real time on a tapeless multichannel electrocardiogram (ECG) Holter system. Simple methods which can significantly improve Ψ's fidelity are described and their results are compared in this paper. It is shown that by adding some simple tests to Ψ, the signals reconstructed by Ψ can be improved as much as 5.45 dB. It is also shown that under the same data rate, a good data compressor with slowly sampled input ECG is preferable to a bad data compressor with highly sampled input ECG.

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Biomedical Engineering, IEEE Transactions on  (Volume:44 ,  Issue: 9 )