文件列表:

main.m (3083, 2023-09-28)

# IzTech-phaseOTDR-dataset Dataset for the article below: Ceyhun Efe Kayan, Kivilcim Yuksel Aldogan, and Abdurrahman Gumus, “**Intensity and phase stacked analysis of a Φ-OTDR system using deep transfer learning and recurrent neural networks**,” Applied Optics62, 1753-1764 (2023) [(link to paper)](https://opg.optica.org/ao/abstract.cfm?uri=ao-62-7-1753) ## Dataset: includes Raw Data files for 15 different cases presented in the article. https://drive.google.com/drive/folders/1U_fTdhzhofmb6wNdpwNNhbNoScKgNt21?usp=sharing ## File name format: [Date]_[Apzt]V_[fvib]Hz.mat **Example:** the phase-OTDR traces for vibration amplitude of 3 V (A_pzt=3 V) and vibration frequency of 500 Hz (f_vib=500 Hz) is recorded as _08Sept2017_1V_500Hz.mat_. **Date:** 08Sept2017 for all 15 files (the date of the measurements). ## Reading Raw Data (main.m) : Using main.m, one can plot the Phase-OTDR traces by extracting the data from the *.mat file and placing it as rows in a matrix (tracematrix). → Just needed to change the filename (example: trname='08Sept2017_2V_500Hz') In this way, rows in the matrix represent the spatial distribution, and each column presents the variation of the trace at a particular position during the slow-time window. Then, A bandpass filtering is applied for collecting the frequency components centered around the pulse modulator’s frequency shift (an acousto-optic modulator was used in the set up imposing a frequency shift of = 160 MHz (the filter can be implemented by various ways). ## Preprocessing: The following procedures are implemented on tracematrix to obtain the final temporal-spatial matrice: * Each term in a Φ-OTDR trace is converted into a complex number by applying the Hilbert transform. * By using the magnitude operation, the amplitude matrix is obtained. * To obtain the phase matrix, the phase shift of the acousto-optic modulator is subtracted from the angle of each complex term. * The differential amplitude matrix is obtained by subtracting the first row of the amplitude matrix from the other columns. * The first column of the phase matrix is subtracted from other columns to remove the “initial phase” caused by the laser source. * The mode of each term in the phase matrix with 2 is calculated (not included in the main.m) ## Citation If you use the IzTech-phaseOTDR-dataset in your research, please cite our related publication: ```bibtex @article{kayan2023intensity, title={Intensity and phase stacked analysis of a $\Phi$-OTDR system using deep transfer learning and recurrent neural networks}, author={Kayan, Ceyhun Efe and Aldogan, Kivilcim Yuksel and Gumus, Abdurrahman}, journal={Applied Optics}, volume={62}, number={7}, pages={1753--1764}, year={2023}, publisher={Optica Publishing Group} }

近期下载者：

相关文件：

评论：[我要评论] [举报此文件]

收藏者：