Radio navigation or radionavigation is the application of radio frequencies to determine a position of an object on the Earth Like radiolocation, it is a type of radiodetermination.
The basic principles are measurements from/to electric beacons, especially
- Angular directions, e.g. by bearing, radio phases or interferometry,
- Distances, e.g. ranging by measurement of time of flight between one transmitter and multiple receivers or vice versa,
- Distance differences by measurement of times of arrival of signals from one transmitter to multiple receivers or vice versa
- Partly also velocity, e.g. by means of radio Doppler shift.
Combinations of these measurement principles also are important -- e.g., many radars measure range and azimuth of a target.
more can be found at Wikipedia https://en.wikipedia.org/wiki/Radio_navigation or https://en.wikipedia.org/wiki/Radionavigation-satellite_service
This site provides a lists and views of IALA DGNSS beacons that are copied from the IALA website.
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