Decimation Filter Design Optimization of ADC for ECG Processing
Journal Title: IOSR Journals (IOSR Journal of Electrical and Electronics Engineering) - Year 2018, Vol 13, Issue 2
Abstract
Digital processing of ECG for arrhythmia analysis is very much dependent upon the ECG sapling resolution. However, over sampling may increase the processing cose and under sampling may introduce error in the analysis as vital information may be lost due to under sampling. Therefore, an optimized sampling is very much required for accurate arrhythmia analysis. There is a trade off between sampling rate and accuracy in analysis. However, an optimum solution may be achieved using the descimation filter in analog to digital conversion. The existing decimation filters in ADC suffers from the drawback of high sampling even for a constant signal due to very instant nature of the input signal. However, the sampling rate may be varied if a dynamic window is used to gate the input signal and then analog to digital conversion is performed. This enhances the maximum utilization of available bandwidth of the input signal. Index Terms: ADC, ECG, Decimation Filter
Authors and Affiliations
Sidharth Sarswat, Maninder Kaur
Keywords
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