Satellites

Satellites

Of or relating to any man-made object launched to orbit Earth or another celestial body.

Industry: Aerospace

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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 line length on ...

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 characteristics of ...

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 25-thousandth of an inch.

(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 detector array which ...

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 integrated output, ...