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10 Cards in this Set
- Front
- Back
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Dynamic Range? |
The difference between the smallest and largest usable signal through a transmission or processing chain or storage medium. |
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Signal-to-noise ratio? |
A measure used in science and engineering that compares the level of a desired signal to the level of background noise. It is defined as the ratio of signal power to the noise power, often expressed in decibels.
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Full width at half maximum?
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An expression of the extent of a function given by the difference between the two extreme values of the independent variable at which the dependent variable is equal to half of its maximum value.
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Types of computer monitors? |
Cathode Ray Tube (CRT) Liquid crystal displays (LCDs): compact, lightweight Plasma displays: suitable for large, relatively compact displays, but expensive Light emitting diodes (LEDs): built on plasma technology; backlit diodes for more intense lighting and finer colour resolution |
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Types of printers? |
Dotmatrix: B/W, slow, vector/raster, cheap, bad quality, A3 Pen plotters: Colour, slow, vector, medium quality, A0 Laser printers: Colour, fast, vector/raster, expensive, high quality, A4 Bubbeljet plotters: Colour, slow/medium, vector/raster, cheap, medium quality, A0 Imagesetters: Colour, slow/fast, vector/raster, very expensive, very high quality, A0 |
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Satellite advantages over aerial remote sensing? |
*Synoptic view (large areas)
*Fine detail? *Systematic, repetitive coverage *Maintain worldwide cartographic infrastructure *Monitor broad-scale changes, e.g. environmental issues |
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Apogee? |
Point farthest from earth |
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Perigee?
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Point closest to earth |
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Inclination? |
Angle formed by satellite track… between equator & descending node(angle between axis @ N pole & line perpendicular to plane of orbit; counterclockwise trajectory)
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Orbit period? |
Time taken to complete an orbit. |
