Design Methodology of a New Wavelet Basis Function for Fetal Phonocardiographic Signals
Fetal phonocardiography (fPCG) based antenatal care system is economical and has a potential to use for long-term monitoring due to noninvasive nature of the system. The main limitation of this technique is that noise gets superimposed on the useful signal during its acquisition and transmission. Co...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2013/505840 |
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| author | Vijay S. Chourasia Anil Kumar Tiwari |
| author_facet | Vijay S. Chourasia Anil Kumar Tiwari |
| author_sort | Vijay S. Chourasia |
| collection | DOAJ |
| description | Fetal phonocardiography (fPCG) based antenatal care system is economical and has a potential to use for long-term monitoring due to noninvasive nature of the system. The main limitation of this technique is that noise gets superimposed on the useful signal during its acquisition and transmission. Conventional filtering may result into loss of valuable diagnostic information from these signals. This calls for a robust, versatile, and adaptable denoising method applicable in different operative circumstances. In this work, a novel algorithm based on wavelet transform has been developed for denoising of fPCG signals. Successful implementation of wavelet theory in denoising is heavily dependent on selection of suitable wavelet basis function. This work introduces a new mother wavelet basis function for denoising of fPCG signals. The performance of newly developed wavelet is found to be better when compared with the existing wavelets. For this purpose, a two-channel filter bank, based on characteristics of fPCG signal, is designed. The resultant denoised fPCG signals retain the important diagnostic information contained in the original fPCG signal. |
| format | Article |
| id | doaj-art-63261a4eba374f288028a939497701aa |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-63261a4eba374f288028a939497701aa2025-02-03T01:22:14ZengWileyThe Scientific World Journal1537-744X2013-01-01201310.1155/2013/505840505840Design Methodology of a New Wavelet Basis Function for Fetal Phonocardiographic SignalsVijay S. Chourasia0Anil Kumar Tiwari1Manoharbhai Patel Institute of Engineering & Technology, Kudwa, Gondia, Maharashtra 441 614, IndiaIndian Institute of Technology, Rajasthan MBM College Campus, Old Residency Road, Ratanada, Jodhpur, Rajasthan 342 011, IndiaFetal phonocardiography (fPCG) based antenatal care system is economical and has a potential to use for long-term monitoring due to noninvasive nature of the system. The main limitation of this technique is that noise gets superimposed on the useful signal during its acquisition and transmission. Conventional filtering may result into loss of valuable diagnostic information from these signals. This calls for a robust, versatile, and adaptable denoising method applicable in different operative circumstances. In this work, a novel algorithm based on wavelet transform has been developed for denoising of fPCG signals. Successful implementation of wavelet theory in denoising is heavily dependent on selection of suitable wavelet basis function. This work introduces a new mother wavelet basis function for denoising of fPCG signals. The performance of newly developed wavelet is found to be better when compared with the existing wavelets. For this purpose, a two-channel filter bank, based on characteristics of fPCG signal, is designed. The resultant denoised fPCG signals retain the important diagnostic information contained in the original fPCG signal.http://dx.doi.org/10.1155/2013/505840 |
| spellingShingle | Vijay S. Chourasia Anil Kumar Tiwari Design Methodology of a New Wavelet Basis Function for Fetal Phonocardiographic Signals The Scientific World Journal |
| title | Design Methodology of a New Wavelet Basis Function for Fetal Phonocardiographic Signals |
| title_full | Design Methodology of a New Wavelet Basis Function for Fetal Phonocardiographic Signals |
| title_fullStr | Design Methodology of a New Wavelet Basis Function for Fetal Phonocardiographic Signals |
| title_full_unstemmed | Design Methodology of a New Wavelet Basis Function for Fetal Phonocardiographic Signals |
| title_short | Design Methodology of a New Wavelet Basis Function for Fetal Phonocardiographic Signals |
| title_sort | design methodology of a new wavelet basis function for fetal phonocardiographic signals |
| url | http://dx.doi.org/10.1155/2013/505840 |
| work_keys_str_mv | AT vijayschourasia designmethodologyofanewwaveletbasisfunctionforfetalphonocardiographicsignals AT anilkumartiwari designmethodologyofanewwaveletbasisfunctionforfetalphonocardiographicsignals |