| Presentation | 2009-11-27 Spatial resolution improvement of distributed optical fiber strain measurement by scattered-light power estimation using Wiener filter Kyosuke YAGURA, Hiroshi NARUSE, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A method is proposed for improving the spatial resolution of a distributed fiber optic strain measurement based on Brillouin scattering, using a Wiener filter, and the measurement characteristics are investigated by simulation. With this method, the scattered light powers (SLPs) within a fiber section that corresponds to the improved spatial resolution are calculated by applying a Wiener filter to the SLPs observed in the longitudinal direction of the fiber at each measurement frequency. The center frequency of the spectrum is then obtained from the SLP calculated at the same measurement distance. Simulations clarified that the increase of the center frequency leading part could be improved from two to six times compared with the conventional method, due to calculation of the center frequency from the observed power spectrum when changed to a rectangular shape. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical fiber sensing / strain / spatial resolution / Wiener filter / Brillouin scattered light |
| Paper # | OFT2009-56 |
| Date of Issue |
| Conference Information | |
| Committee | OFT |
|---|---|
| Conference Date | 2009/11/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Optical Fiber Technology (OFT) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Spatial resolution improvement of distributed optical fiber strain measurement by scattered-light power estimation using Wiener filter |
| Sub Title (in English) | |
| Keyword(1) | Optical fiber sensing |
| Keyword(2) | strain |
| Keyword(3) | spatial resolution |
| Keyword(4) | Wiener filter |
| Keyword(5) | Brillouin scattered light |
| 1st Author's Name | Kyosuke YAGURA |
| 1st Author's Affiliation | Mie University() |
| 2nd Author's Name | Hiroshi NARUSE |
| 2nd Author's Affiliation | Mie University |
| Date | 2009-11-27 |
| Paper # | OFT2009-56 |
| Volume (vol) | vol.109 |
| Number (no) | 303 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |