An optimized cosine-modulated nonuniform filter bank design for subband coding of ECG signal
A simple iterative technique for the design of nonuniform cosine modulated filter banks (CMFBS) is presented in this paper. The proposed technique employs a single parameter for optimization. The nonuniform cosine modulated filter banks are derived by merging the adjacent filters of uniform cosine m...
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| Format: | Article |
| Language: | English |
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Elsevier
2015-07-01
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| Series: | Journal of King Saud University: Engineering Sciences |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1018363913000500 |
| _version_ | 1818062581933277184 |
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| author | A. Kumar G.K. Singh S. Anurag |
| author_facet | A. Kumar G.K. Singh S. Anurag |
| author_sort | A. Kumar |
| collection | DOAJ |
| description | A simple iterative technique for the design of nonuniform cosine modulated filter banks (CMFBS) is presented in this paper. The proposed technique employs a single parameter for optimization. The nonuniform cosine modulated filter banks are derived by merging the adjacent filters of uniform cosine modulated filter banks. The prototype filter is designed with the aid of different adjustable window functions such as Kaiser, Cosh and Exponential, and by using the constrained equiripple finite impulse response (FIR) digital filter design technique. In this method, either cut off frequency or passband edge frequency is varied in order to adjust the filter coefficients so that reconstruction error could be optimized/minimized to zero. Performance and effectiveness of the proposed method in terms of peak reconstruction error (PRE), aliasing distortion (AD), computational (CPU) time, and number of iteration (NOI) have been shown through the numerical examples and comparative studies. Finally, the technique is exploited for the subband coding of electrocardiogram (ECG) and speech signals. |
| first_indexed | 2024-12-10T14:06:29Z |
| format | Article |
| id | doaj.art-556c7eb7ea95488fbab199b417595d59 |
| institution | Directory Open Access Journal |
| issn | 1018-3639 |
| language | English |
| last_indexed | 2024-12-10T14:06:29Z |
| publishDate | 2015-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of King Saud University: Engineering Sciences |
| spelling | doaj.art-556c7eb7ea95488fbab199b417595d592022-12-22T01:45:39ZengElsevierJournal of King Saud University: Engineering Sciences1018-36392015-07-0127215816910.1016/j.jksues.2013.10.001An optimized cosine-modulated nonuniform filter bank design for subband coding of ECG signalA. Kumar0G.K. Singh1S. Anurag2PDPM Indian Institute of Information Technology Design and Manufacturing, Jabalpur 482005, MP, IndiaIndian Institute of Technology Roorkee, Roorkee 247667, Uttrakhand, IndiaPDPM Indian Institute of Information Technology Design and Manufacturing, Jabalpur 482005, MP, IndiaA simple iterative technique for the design of nonuniform cosine modulated filter banks (CMFBS) is presented in this paper. The proposed technique employs a single parameter for optimization. The nonuniform cosine modulated filter banks are derived by merging the adjacent filters of uniform cosine modulated filter banks. The prototype filter is designed with the aid of different adjustable window functions such as Kaiser, Cosh and Exponential, and by using the constrained equiripple finite impulse response (FIR) digital filter design technique. In this method, either cut off frequency or passband edge frequency is varied in order to adjust the filter coefficients so that reconstruction error could be optimized/minimized to zero. Performance and effectiveness of the proposed method in terms of peak reconstruction error (PRE), aliasing distortion (AD), computational (CPU) time, and number of iteration (NOI) have been shown through the numerical examples and comparative studies. Finally, the technique is exploited for the subband coding of electrocardiogram (ECG) and speech signals.http://www.sciencedirect.com/science/article/pii/S1018363913000500Cosine modulatedNonuniform filter bankAdjustable window functionConstrained equiripple FIR technique |
| spellingShingle | A. Kumar G.K. Singh S. Anurag An optimized cosine-modulated nonuniform filter bank design for subband coding of ECG signal Journal of King Saud University: Engineering Sciences Cosine modulated Nonuniform filter bank Adjustable window function Constrained equiripple FIR technique |
| title | An optimized cosine-modulated nonuniform filter bank design for subband coding of ECG signal |
| title_full | An optimized cosine-modulated nonuniform filter bank design for subband coding of ECG signal |
| title_fullStr | An optimized cosine-modulated nonuniform filter bank design for subband coding of ECG signal |
| title_full_unstemmed | An optimized cosine-modulated nonuniform filter bank design for subband coding of ECG signal |
| title_short | An optimized cosine-modulated nonuniform filter bank design for subband coding of ECG signal |
| title_sort | optimized cosine modulated nonuniform filter bank design for subband coding of ecg signal |
| topic | Cosine modulated Nonuniform filter bank Adjustable window function Constrained equiripple FIR technique |
| url | http://www.sciencedirect.com/science/article/pii/S1018363913000500 |
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