explosive echo ranging
Also found in: Acronyms.
explosive echo ranging[ik′splō·siv ′ek·ō ‚rānj·iŋ]
Sonar in which a charge is exploded underwater to produce a shock wave that serves the same purpose as an ultrasonic pulse; the elapsed time for return of the reflected wave gives target range.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.