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| The Improvement of ECG Parameter Estimation Obtained by Up-sampling 500 Hz Data |
| YU Si-si1, LIU Hong-xing1, SUN Xing-guo2 |
1. Nanjing University, Nanjing 210093,China;
2. Fuwai Hospital, Beijing 100037, China |
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Abstract Nowadays, numerous commercial electrocardiographs (ECG) have 500 Hz output sampling rate, i.e., 2 ms corresponding sampling interval. Medical workers who have no background of signal processing may worry about whether such low 500 Hz output sampling rate data could support high-precision estimation of electrocardiogram parameters by being up-sampled. With intention to clarify the problem to the medical workers, this paper takes some simulating experiment to illustrate it. The experiment chose the RR interval and R peak amplitude as representative parameters to be estimated. The obtained results were as follows: for RR interval parameter, its estimation error can be lowered to below 0.3 ms by up-sampling; for R peak amplitude, its estimation error can be reduced to below 2.0 μV by up-sampling. It is believed that other ECG parameter estimation can also be improved similarly by up-sampling 500 Hz data.
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Received: 20 November 2016
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Corresponding Authors:
YU Si-si.
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