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from article Surveillance radar
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from article Automatic landing system
Schematic of radar-beam system for aircraft-carrier and shore applications.
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from article Altimeter
Schematic arrangement of sensitive pressure altimeter. 1 ft = 0.3 m.
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from article Altimeter
Radar altimeter principles. (a) Ideal return power distribution, which would be observed if the signal came only from the closest point to the radar. (b) Typical distribution of average returned power as a function of distance from the radar. (c)…
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from article Altimeter
Block diagrams of typical radar altimeters. (a) Automatic pulse altimeter. Control, tracking, and output circuits may all be digital. (b) Servo-adjusted-sweep FM altimeter.
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from article Sextant
Marine sextant.
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from article Sextant
Periscopic sextant for use in aircraft.
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from article Air-traffic control
Terminal radar controller's plan view display. Aircraft positions are shown by radar returns. Display is centered on primary airport with parallel and intersecting runways. Range rings are spaced 5 mi (9 km) apart. Airspace within boundary and above…
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from article Inertial navigation system
Elementary accelerometer.
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from article Inertial navigation system
Computation of distance by two integrations. Integration of acceleration gives velocity; integration of velocity gives distance.
