clutter

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clutter

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

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)

clutter

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.

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.
References in periodicals archive ?
It is pointed out that matched filtering in range on receiver is not used because the target and clutter have the same power spectrum.
n] (r) be the spatially whitened clutter on the nth pulse.
N] (r) are used to model the large power fluctuations associated with the various clutter levels found in different range cells.
Section 3 constructs the clutter suppression sketch by the pre-filter and iterative reweighted [l.
m]), the perturbation w = c + n represents clutter c plus noise n, [alpha] is the 'scene' vector with [[alpha].
In this paper, we further assume that the clutter and noise are all Gaussian distributed and mutually independent.
The problem is, however, that mission clutter prevents teachers and students from concentrating exclusively on learning.
Unless mission clutter is shifted away from classrooms, our only alternative is to create Standards of Mission Clutter.
If basic education could operate like a business, mission clutter would be eliminated.
The radar clutter power given by (3) can be simply expressed using one-way path loss L(x, M) thus:
The conventional CPM method for evaporation duct RFC inversion identifies the EDH associated with the clutter pattern (in the modeled clutter library) that best matches the observed clutter pattern.
The clutter libraries for three radar frequencies and four antenna heights are shown in Fig.