over-the-horizon radar

(redirected from OTH radar)
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over-the-horizon radar

A radar system that makes use of the atmospheric reflection and refraction phenomena to extend its range of detection beyond line of sight. Over-the-horizon radars may be either forward scatter or back scatter systems.
References in periodicals archive ?
The Laguna OTH radar is a modern, highly efficient, civil use radar specially designed for ensuring law and order as well as providing for the surveillance of the 200-miles of exclusive economic zone of coastal states.
OTH radar operates at HF band (3 MHz-30 MHz) and can be divided in two categories according to the used propagation channel, namely skywave, (such as NOSTRADAMUS [1,2], JORN [3,4], and ROTHR [5]), or surface wave, (such as SECAR [6] and WERA [7,8]).
Naval Radar: this sector is subdivided into: long range, medium/short range, multifunctional, tracking radar, optronic tracking sensors, secondary radar, coastal and VTS sensors and OTH radar