Ultrashort baseline synchronous-clock emergency resynchronizing method in the Jiaolong deep-sea manned submersible. (12th February 2019)
- Record Type:
- Journal Article
- Title:
- Ultrashort baseline synchronous-clock emergency resynchronizing method in the Jiaolong deep-sea manned submersible. (12th February 2019)
- Main Title:
- Ultrashort baseline synchronous-clock emergency resynchronizing method in the Jiaolong deep-sea manned submersible
- Authors:
- Zhang, Tongwei
Liu, Baohua
Liu, Yeyao
Tang, Jialing
Qin, Shengjie
Wang, Xiangxin - Abstract:
- During the dive operation of the Jiaolong deep-sea manned submersible, the synchronization clock in the manned cabin may be falsely triggered and cause asynchrony between it and the synchronization clock installed in the mothership, rendering it impossible for the ultrashort baseline to provide the correct position of the Jiaolong deep-sea manned submersible. To solve this problem, this article proposes an emergency resynchronizing method for the two synchronous clocks, used by the ultrashort baseline, in the Jiaolong deep-sea manned submersible. Initially, based on the depth and horizontal range measured by the ultrashort baseline and the manned submersible depth transmitted by the acoustic communication system, the time-delay difference between the two synchronous clocks is estimated. The time-delay difference is then compensated by delaying the synchronous clock trigger signal by an external waveform generator in the mothership. Finally, by comparing the depth measured by the ultrashort baseline and the manned submersible depth transmitted by the acoustic communication system, the time-delay difference is finely adjusted. Using this method, the ultrashort baseline problem, which occurred suddenly while the Jiaolong deep-sea manned submersible was diving, is successfully solved.
- Is Part Of:
- International journal of advanced robotic systems. Volume 16:Number 1(2019:Jan./Feb.)
- Journal:
- International journal of advanced robotic systems
- Issue:
- Volume 16:Number 1(2019:Jan./Feb.)
- Issue Display:
- Volume 16, Issue 1 (2019)
- Year:
- 2019
- Volume:
- 16
- Issue:
- 1
- Issue Sort Value:
- 2019-0016-0001-0000
- Page Start:
- Page End:
- Publication Date:
- 2019-02-12
- Subjects:
- Resynchronize -- synchronous clock -- time-delay difference estimation -- ultrashort baseline -- manned submersible
Robotics -- Periodicals
Robotics
Periodicals
629.892 - Journal URLs:
- http://arx.sagepub.com/ ↗
http://search.epnet.com/direct.asp?db=bch&jid=13CR&scope=site ↗
http://www.intechweb.org/journal.php?id=3 ↗
http://www.uk.sagepub.com/home.nav ↗ - DOI:
- 10.1177/1729881419827790 ↗
- Languages:
- English
- ISSNs:
- 1729-8806
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 10145.xml