- 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 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.
Industry:Aerospace
A high-order resampling technique in which the brightness value of a pixel in a corrected image is interpolated, from the brightness values of the 16 nearest pixels around the location of the corrected pixel.
Industry:Aerospace
a Landsat 7 data product in which the SLC-off caused gaps are filled with data. The USGS Landsat website offers details on the various gap-filled products.
Industry:Aerospace
A line connecting points of equal quantity on a map. A contour line is an isarithm.
Industry:Aerospace
A measure of the ratio of outgoing to incoming radiation calculated by converting a radiometrically calibrated image to an innate characteristic of the target being observed. Calibrated at-satellite spectral radiance is converted to unitless reflectance by separating out the atmospheric component of the reflective band radiance and assuming that the target is a Lambertian reflector, re-radiating incident solar radiation equally in all directions. In general, reflectance is a function of incident angle of the energy, viewing angle of the sensor, spectral wavelength, and bandwidth, and the nature of the object. Also see planetary albedo, bidirectional reflectance and atmospheric correction.
Industry:Aerospace
A mosaic made without correction for distortion or displacement of any type.
Industry:Aerospace
A mosaic oriented and scaled to horizontal ground control, usually assembled from rectified photographs or geolocated images.
Industry:Aerospace
A physical variable, which remains similar to another variable insofar as the proportional relationship between the two, remain the same over a specified, and usually continuous, range. A temperature, for example, may be represented by a voltage level, which would be its analog. Contrast with digital.
Industry:Aerospace
A place or structure, such as the Landsat satellite, equipped and used for making observations of astronomical or other natural phenomena; a place or structure affording an extensive view.
Industry:Aerospace
A portion of the electromagnetic spectrum in the microwave region of frequencies ranging between 12 and 93 gigahertz (GHz). The 18-40 GHz range is used for radar and general communications. The 12-18 GHz region is used for satellite communications.
Industry:Aerospace
