3 Terms
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Satellites
Of or relating to any man-made object launched to orbit Earth or another celestial body.
Industry: Aerospace
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Satellites
Gain
Aerospace; Satellites
A general term used to denote an increase in signal power in transmission from one point to another. Gain is usually expressed in decibels.
Skew correction
Aerospace; Satellites
A geometric correction made on Landsat imagery to offset the skewing effect of the Earth's rotation during scene acquisition.
Byte
Aerospace; Satellites
A group of consecutive bits (usually 8 bits) that is operated upon as a single unit of information in a digital computer; usually shorter than a word.
Batch processing
Aerospace; Satellites
Pertaining to the technique of executing a set of computer programmes such that each programme of the set is completed before the next programme of the set is started; loosely, sequential processing.
Partial aperture solar calibrator (PAC or PASC)
Aerospace; Satellites
One of two on-board external solar calibrators on Landsat 7 ETM+. The PASC consists of structure in front of the ETM+ aperture that has four independent pinholes for reflecting solar irradiance on a ...
Rectification
Aerospace; Satellites
Process by which a tilted or oblique image is projected onto a horizontal reference plane, the angular relation between the image and the plane being determined by ground reconnaissance. For example ...
Banding
Aerospace; Satellites
Radiometric artefacts that affect all detectors in a spectral band, rather than the relative correction for striping of a single detector in the image of a band. When forward and reverse scans are ...