Document Type : Research Paper
Authors
1 University of Mosul - College of Electronics Engineering
2 University of Mosul - College of Engineering
Abstract
In this paper, the 1st order Gaussian derivative wavelet function utilized in the design of some corresponding filter banks. Since the 1st order Gaussian derivative function has a similar shape to QRS complex part of the ECG, it can be used in QRS feature extraction. Using this characteristic of such wavelet function, the designed FIR wavelet filter banks can be realized in highly-efficient lattice structures which are easy to implement in two standard deviation values ( σ=1 and σ=2 ). The resulting lattice structures reduce the number of filter banks coefficients and this reduces, in turn the number of multiplications and improves the filter banks efficiencies as it reduces the number of computations performed. The resulting quantized multiplier values can also lead to multiplierless realizations using sum-of-power-of-two (SOPOT) method. FPGA implementations of such structures are achieved with less-complexity.
Keywords
- ECG
- Gaussian derivatives wavelet function
- Filter Banks
- Lattice structures
- Multiplierless implementation
Main Subjects
- Mahmoodabadi, S. Z., Ahmadian, A. and Abolhasani, M. D. (2005). ECG Feature Extraction Using Daubechies Wavelets. proceedings of the Fifth IASTED International Conference. Visualization, Imaging, and Image Processing. Benidorm, Spain, September 7-9.
- Bhojwani, S. N. (2007). Simulation of Physiological Signals Using Wavelets. M.Sc. Thesis, University of Akron, On:
http://etd.ohiolink.edusendpdf.cgibhojwani%20soniya%20naresh.pdfacc_num=akron 1193079604.
- Saritha, C.,Sukanya V. and Narasimha Murthy Y. (2008). ECG Signal Analysis Using Wavelet Transforms. Bulg. J. Phys. 35, pp: 68–77.
- Engin, M. (2004). ECG Beat Classification Using Neuro-Fuzzy Network. Pattern Recognition Letters 25 Elsevier, pp: 1715 –1722.
- Karpagachelvi, S., Arthanari, M. and Sivakumar, M. (2010). ECG Feature Extraction Techniques-A Survey Approach. International Journal of Computer Science and Information Security, vol. 8, no: 1, pp: 76 - 80, On:
http://sites.google.com/site/ijcsis/.
- German-Sallo, Z. (2009). Adapted Discrete Wavelet Function Design for ECG Signal Analysis. Electrical and Mechanical Engineering, Acta Universitatis Sapientiae, pp: 155 - 161, On:
http://www.acta.sapientia.ro-acta-emeng-C1-emeng1-13.pdf.
- Sripathi, D. (2003). Efficient Implementations of Discrete Wavelet Transforms Using FPGAs. Master’s Thesis, Electrical and Computer Engineering Department, Florida State University.
- Hale, D. (2006). Recursive Gaussian Filters. Center for Wave Phenomena, Colorado School of Mines, Golden CO 80401, USA. pp: 269-278 On:
http://www.cwp.mines.edu/Meetings/Project06/cwp546.pdf.
- Al-Gherify, M. F. K. (2007). Image Compression using BinDCT for Dynamic Hardware FPGA’s. Ph.D. Thesis, General Engineering Research Institute (GERI), Liverpool John Moores University.
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