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

aspect ratio

Aerospace; Satellites

(1) Of pixels, the numerical ratio of the width of a pixel to its height. (2) Of images, the ratio of two perpendicular axes scales, or the ratio of image length to width.

(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 ...

transformation

Aerospace; Satellites

(1) The process of projecting an image (mathematically or graphically) from its plane onto another plane by translation, rotation, and/or scale change. (2) The process of defining such a plane ...

scale

Aerospace; Satellites

(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. ...

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 ...

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. ...