Remote sensing

Remote sensing

The process of using aerial sensor technologies to detect and classify objects on Earth both on the surface, and in the atmosphere and oceans by means of propagated signals.

Industry: Earth science

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Remote sensing

cross-track scanner

Earth science; Remote sensing

Scanner in which a faceted mirror rotates about a horizontal axis to sweep the detector IFOV in a series of parallel scan lines oriented normal to the flight direction.

normal color film

Earth science; Remote sensing

Film in which the colors are essentially true representations of the colors of the terrain.

calibration

Earth science; Remote sensing

Process of comparing an instrument's measurements with a standard.

classification

Earth science; Remote sensing

Process of assigning individual pixels of an image to categories, generally on the basis of spectral reflectance characteristics.

Doppler principle

Earth science; Remote sensing

Describes the change in observed frequency that electromagnetic or other waves undergo as a result of the movement of the source of waves relative to the observer.