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

Background noise

Aerospace; Satellites

(1) In recording and reproducing, the unwanted disturbance within a useful frequency band, independent of whether or not a signal is present. The signal is not to be included as part of the ...

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, ...

Saturation

Aerospace; Satellites

(1) In general, the point at which a further increase in input yields no further increase in output. (2) (optics) The presence of the maximum number of wavelengths over the spectral region ...

(1) An abbreviation of binary digit. (2) A unit of memory corresponding to the ability to store the result of a choice between two alternatives, used especially in connexion with digital computing ...

Nominal

Aerospace; Satellites

(1) In name only; so-called. (2) Loosely, a rough designation or an approximation. (3) According to plan or design: a nominal flight check.

Mosaic

Aerospace; Satellites

An image or photograph made by piecing together individual images or photographs covering adjacent areas.

Black body

Aerospace; Satellites

An ideal body which, if it existed, would be a perfect absorber and a perfect radiator, absorbing all incident radiation, reflecting none, and emitting radiation at all wavelengths. In remote ...