Arifin, Amalia Dwi (2016) Inversi Dispersi Gelombang Rayleigh Yang Robust Berbasis Algoritma Progressive-Progressive Particle Swarm Optimization (Pp-Pso). Undergraduate thesis, Institut Teknologi Sepuluh Nopember Surabaya.
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Abstract
Salah satu parameter fisika batuan yang penting ialah kecepatan gelombang geser suatu batuan. Parameter ini dapat dihasilkan dari proses inversi kurva dispersi gelombang Rayleigh. Karakter dari inversi data ini tidak unik dan multimodal. Oleh karena itu, diperlukan suatu algoritma stabil,robust terhadap noise, tidak mudah terjebak dalam optimum lokal (bersifat ekplorative) dan mampu menyediakan posterior distribusi model (PDM). Pada penelitian ini dikembangkan algoritma inversi yang berbasis PP-PSO untuk inversi dispersi gelombang Rayleigh. Algoritma ini telah diterapkan pada data sintetik yang bebas noise dan terkontaminasi noise, serta data lapangan. Hasilnya ialah algoritma PP-PSO memiliki performa stabil, robust terhadap noise, mampu menyediakan PDM dan bersifat ekploratif. Hasil inversi ini juga sesuai dengan litologi lapangan
================================================================================================One of the important physical parameters of rock is the shear wave velocity. These parameters can be inverted from results of Rayleigh wave dispersion. The character of the inversion of these data are not unique and multimodal. Therefore , be required a stable algorithm , robustness to noise , ekplorative and is able to provide posterior distribution model ( PDM ) . In this research -based inversion algorithm developed PP - PSO for inversion of Rayleigh waves dispersion. This algorithm has been applied noise-free and noise contamination of synthetic data , as well as field data. The result is PP - PSO algorithm has a stable performance , robustness to noise , is able to provide PDM and explorative . This inversion results also correspond to the field lithology
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSFi 551.570 2 Ari i |
| Uncontrolled Keywords: | Dispersi Gelombang Rayleigh, Inversi, PP-PSO ketidakpastian model, Posterior distribusi model |
| Subjects: | Q Science > QE Geology > QE538.5 Seismic tomography; Seismic waves. Elastic waves T Technology > TC Hydraulic engineering. Ocean engineering > TC147 Ocean wave power. |
| Divisions: | Faculty of Mathematics and Science > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | EKO BUDI RAHARJO |
| Date Deposited: | 01 Apr 2020 01:47 |
| Last Modified: | 01 Apr 2020 01:47 |
| URI: | http://repository.its.ac.id/id/eprint/75627 |
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