Radio navigation

by gowtham 2010-02-18 19:06:27

Radio navigation or radionavigation is the application of radio frequencies to determine a position on the Earth. Like radiolocation, it is a type of radiodetermination.

The basic principles are measurements from/to electric beacons, especially

* directions, e.g. by bearing, radio phases or interferometry,
* distances, e.g. ranging by measurement of travel times,
* partly also velocity, e.g. by means of radio Doppler shift

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