Submarine cable is an important channel for underwater power transmission and information transmission. However, due to the influence of ocean circulation and fishing vessel anchoring, the actual position of submarine cable is very easy to change. To solve the above problems, the active sound source is used to locate the submarine cable. The ship generates several signals along the submarine cable route, receives and demodulates the acoustic signals through the built-in optical fiber of the submarine cable, and uses the time difference of arrival (TDOA) algorithm to locate the position of a single channel, so as to determine the position of the entire submarine cable.
Stable operation of underwater systems is critical to economic development. However, the system is exposed to certain security risks during the long working cycle due to the complex underwater environment. Therefore, real-time dynamic monitoring of these systems is even more important. We are committed to responding to external disturbances in a timely manner and minimizing damage. In addition, we should exclude the disturbance from the water waves when monitoring, which also increases the difficulty of determining the disturbance for underwater monitoring. This paper designs an underwater monitoring system based on phase-sensitive optical time-domain reflectometer distributed fiber-optic sensor, which can make more accurate judgment of underwater disturbance. At the same time, it has the advantages of enough monitoring range, long-term working ability and large frequency response.
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.