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Aerospace
Industry that includes methods of travel and spacecraft for navigating the air or space.
4Categories 22286Terms
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Aerospace > Satellites 
digital
Aerospace; Satellites
Representation of data in the form of discrete bits, or equal integral units. Contrast to analog.
bumper mode
Aerospace; Satellites
Satellite scanners operating in backup bumper mode. Landsat-type sensors such as the Thematic Mapper (TM) and the Enhanced Thematic Mapper Plus (ETM+) are designed to have a fixed ...
radar
Aerospace; Satellites
Short for "radio detection and ranging," radar sends out short pulses of microwave energy and records the returned signal's strength and time of arrival.
jitter
Aerospace; Satellites
Small rapid variations in a variable (such as a waveform) due to deliberate or accidental electrical or mechanical disturbances or to changes in the supply voltages in the ...
micrometer (µm)
Aerospace; Satellites
Sometimes expressed using the obsolete term micron, a micrometer is one-millionth of a meter and also can be expressed as 10 -6 meter, one thousandth of a millimeter, one ...
multispectral scanner (MSS)
Aerospace; Satellites
(1) A non-photographic imaging system, which utilizes an oscillating mirror and fiber optic sensor array. The mirror sweeps from side to side, transmitting incoming energy to a ...
grey level
Aerospace; Satellites
(1) A shade of grey representing a given radiometric level, or intensity, on the image. (2) A number or value assigned to a position (x, y) on the image proportional to the ...
Sub-categories
- Control systems (1744)
- Satellites (11359)
- Space flight (8863)
- Space shuttle (354)