clutter

clutter

Electronics unwanted echoes that confuse the observation of signals on a radar screen

Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

clutter

[′kləd·ər]

(electromagnetism)

Unwanted echoes on a radar screen, such as those caused by the ground, sea, rain, stationary objects, chaff, enemy jamming transmissions, and grass. Also known as background return; radar clutter.

(mathematics)

Sperner set

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

clutter

Plan position indicator.

In radar operations, the reception and visual display of radar echoes caused by precipitation, chaff, terrain, numerous aircraft, or other phenomena. Such echoes may limit or preclude ATC (air traffic control) from providing services based on radar.

An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved

Clutter

A secondary inbox in Microsoft Outlook where less relevant mail is placed. After analyzing the content, the message is placed into the Clutter box if it is deemed non-essential to the user. Mail going into Clutter is not considered spam, which would otherwise be filtered into the Junk mailbox. Clutter functions similarly to the multiple inboxes in Gmail (see Gmail tabs). See spam filter.

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