navigation accuracy measurement system

navigation accuracy measurement system

[‚nav·ə′gā·shən ′ak·yə·rə·sē ′mezh·ər·mənt ‚sis·təm]
(navigation)
A simple height-finding radar system that employs a pulse radar with a rotating fan-beam antenna and a curve-fitting method to evaluate the accuracy of aircraft altitude-measuring equipment.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.