beacon

beacon

1. A beam of radio waves, or a radio signal, that is used for navigation and/or direction finding. 2. A transmitter that radiates a beam of radio waves, or a radio signal, as an aid in navigation and/or direction finding. 3. A signal transmitted continuously on a specific frequency, to help radio operators ascertain propagation conditions. 4. A station or transmitter that generates and radiates a signal to help radio operators determine propagation conditions. 5. In robotics, a device or system that aids in navigation. For example, tricorner reflectors can be positioned in strategic locations, and a mobile robot equipped with a scanning infrared laser. The robot controller determines the distance to any given reflector by measuring the time required for the laser beam to return. In this way, two mirrors can allow the robot to locate its position in two dimensions; three mirrors can facilitate position determination in three-dimensional space.

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Category: Electronic engineering
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