Dictionary:Doppler sonar

From SEG Wiki
Revision as of 22:49, 7 June 2017 by Lilianameleza (talk | contribs) (Marked this version for translation)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search
Other languages:
English • ‎español

A sonic location system used by ships, based on the Doppler effect. See Figure D-21b. Velocity measurements together with gyro-compass direction may be integrated to give position. Signals are reflected from the sea floor or from the water mass (volume reverberation or water-track mode, often when the water is deeper than 600–1000 ft, but resulting in poorer accuracy).