- Industry: Aerospace
- Number of terms: 16933
- Number of blossaries: 2
- Company Profile:
The Executive Branch agency of the United States government, responsible for the nation's civilian space program and aeronautics and aerospace research.
A file of values from which functions corresponding to a given argument can be obtained. A table lookup procedure is employed.
Industry:Aerospace
A frequency between 390 MHz and 1.55 GHz which is used for satellite communications and for terrestrial communications between satellite equipment.
Industry:Aerospace
A function or operator that takes an image as its input and produces an image as its output. Depending on the transform chosen, the input and output images may appear entirely different and have different interpretations. Fourier transforms, principal component analysis (also called Karhunen-Loeve analysis), and various spatial filters, are examples of frequently used image transformation procedures.
Industry:Aerospace
A general class of electronic or digital techniques used to assign linage points or data vectors to particular classes based on the density or level of the response in a single image or channel; classification by thresholds.
Industry:Aerospace
A general term for intermediate and long wavelength infrared-emitted radiation, as contrasted to short wavelength reflected (solar) infrared radiation. In practice, generally refers to infrared radiation emitted in the 3 to 5 µm and 8 to 14 µm atmospheric windows.
Industry:Aerospace
A general term used to denote an increase in signal power in transmission from one point to another. Gain is usually expressed in decibels.
Industry:Aerospace
A geographic feature of known location that is recognizable on images and can be used to determine geometric corrections to those images.
Industry:Aerospace
A geometric correction made on Landsat imagery to offset the skewing effect of the Earth's rotation during scene acquisition.
Industry:Aerospace
A global indexing system for Landsat data, first developed in Canada, which is based on nominal scene centers defined by path and row coordinates. See path, row.
Industry:Aerospace
A graphical representation of a frequency distribution by means of lines or rectangles that represent class intervals along the x-axis, and corresponding class frequencies along the y-axis; a frequency distribution plot, often of a classification training area.
Industry:Aerospace
