The article discusses the use of Distributed Acoustic Sensing technology in locating underground all-dielectric optic cables. DAS uses fiber optic cables to detect acoustic vibrations along the cable's length caused by digging or drilling, allowing for precise identification of the cable's location and path without excavation or other intrusive search methods. DAS provides high-resolution data over long distances, making it more accurate than traditional search methods like geo-radar or GPS markers. The article proposes a localization algorithm for detecting the path of all-dielectric optical cables using DAS technology, based on a combination of approximate and point estimates of cable location. The algorithm is tested on a testing ground of a section of an optical communication line, demonstrating the ability to determine the area of optical cable laying with a radius of up to 5 meters in real-time.
The paper proposes a method for localizing the location of an optical cable based on the analysis of the characteristics of a phase-sensitive reflectometer under external acoustic impact. Approbation of the methodology was carried out using a vibroacoustic monitoring system at a test site built on the territory of the university. The results of measurements of the intensity distribution of the acoustic impact along the length of the optical fiber depending on the location of the impact source are presented. The specific features of the method based on the analysis of amplitude characteristics are determined.
The paper shows the possibilities of searching for a cable laying route, determining the depth of occurrence and localizing damage sites for cables without metal elements. A description of the methods is given and their potential capabilities are considered. New methods of searching for fiber-optic cable lines and determining the locations of their damage are proposed.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.