Roihanah, Humairo (2020) Time Scale Modification (TSM) pada Sinyal Phonocardiogram (PCG) Menggunakan Synchronous Overlap-And-Add Fixed Synthesis (SOLAFS) dan Discrete Wavelet Transform (DWT). Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian ini mengusulkan penerapan Time Scale Modification (TSM) berdasarkan dekomposisi multiresolusi dengan mengombinasikan Synchronous Overlap-and-Add Fixed Synthesis (SOLAFS) dan Discrete Wavelete Transform (DWT) pada sinyal Phonocardiogram (PCG) untuk memisahkan komponen bunyi jantung serta mereduksi noise. Sinyal PCG didekomposisi menjadi beberapa koefisien sub-band menggunakan DWT untuk mendapatkan informasi frekuensi yang dibutuhkan. SOLAFS diterapkan pada masing-masing koefisien sub-band, kemudian direkonstruksi menjadi sinyal hasil modifikasi skala waktu. Metode ini diuji pada 20 data rekaman PCG dengan rata-rata durasi 33 detik. Rekaman PCG terdiri dari sinyal normal dan abnormal yang masingmasing berjumlah 10 sinyal. Perbandingan visual pada domain waktu dan frekuensi digunakan untuk evaluasi kualitatif, sedangkan pengukuran kuantitatif dilakukan dengan menghitung nilai NRMSE dan SNR.
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The application of Time Scale Modification (TSM) based on multiresolution decomposition by combining Synchronous Overlap-andAdd Fixed Synthesis (SOLAFS) and Discrete Wavelete Transform (DWT) on Phonocardiogram (PCG) signals are proposed this study to separate heart sound components and reduce noise. PCG signals are decomposed into several sub-band coefficients using DWT to get the required frequency information. SOLAFS is applied to each sub-band coefficient, then reconstructed into time-scale modified signal. This method was tested on 20 PCG recordings with an average duration of 33 seconds. The recordings consist of normal and abnormal PCG with 10 signals each. Visual comparison of time and frequency domains is used for qualitative evaluation, while the quantitative measurement is done by calculating the NRMSE and SNR values.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | 3100020084799 RSKom 621.382 2 Roi t-1 |
| Uncontrolled Keywords: | TSM, SOLAFS, DWT, PCG, Bunyi Jantung, Murmur Jantung, Heart Sounds, Heart Murmurs |
| Subjects: | Q Science > QA Mathematics > QA403.3 Wavelets (Mathematics) T Technology > T Technology (General) > T58.5 Information technology. IT--Auditing T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5102.9 Signal processing. |
| Divisions: | Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Computer Engineering > 90243-(S1) Undergraduate Thesis |
| Depositing User: | Humairo Roihanah |
| Date Deposited: | 20 Dec 2022 08:13 |
| Last Modified: | 20 Dec 2022 08:13 |
| URI: | http://repository.its.ac.id/id/eprint/74620 |
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