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

Quantize

Aerospace; Satellites

(1) To restrict a variable to discrete values, each of which is normally an integral multiple of the same quantity. (2) To process a range of grey shades, from maximum to minimum, such that the ...

(1) The ratio of a distance on an image or map to its corresponding distance on the ground. The scale of an image varies from point to point because of tilt and relief, but is usually taken as f/H ...

Albedo

Aerospace; Satellites

(1) The ratio of the amount of electromagnetic energy reflected by a surface to the amount of energy incident upon it, often expressed as a percentage. Example: the albedo of the Earth is 34 percent. ...

Instantaneous field of view (IFOV)

Aerospace; Satellites

(1) The solid angle through which a detector is sensitive to radiation. In a scanning system this refers to the solid angle subtended by the detector when the scanning motion is stopped. ...

Image

Aerospace; Satellites

(1) The recorded representation of an object produced by optical, electro-optical, optical-mechanical, or electronic means. It is the term generally used when the electromagnetic radiation emitted or ...

Ground resolution cell

Aerospace; Satellites

(1) The area of terrain that is covered by the instantaneous field of view of a detector. The altitude of the remote sensing system and the instantaneous field of view of the detector determine the ...

Collimate

Aerospace; Satellites

(1) To align the axes of instruments, especially optical axes of multiple lenses, so that they have the same spatial orientation along a common line. (2) To make parallel rays of light by means of a ...