over-the-horizon radar


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over-the-horizon radar

[′ō·vərthə hə′rīz·ən ′rā‚där]
(electromagnetism)
Long-range radar in which the transmitted and reflected beams are bounced off the ionosphere layers to achieve ranges far beyond line of sight.

over-the-horizon radar

over-the-horizon radar
Principle of over-the-horizon radar.
A radar system that makes use of the atmospheric reflection and refraction phenomena to extend its range of detection beyond the line of sight. Targets can be detected by over-the-horizon radar thousands of miles away. Over-the-horizon radars may be either forward-scatter or back-scatter systems.
References in periodicals archive ?
Frazer, "High-resolution time-frequency distributions for manoeuvring target detection in over-the-horizon radars," IEE Proceedings: Radar, Sonar and Navigation, vol.
One system, the relocatable over-the-horizon radar (ROTHR), has been able to change its focus as well and become a key sensor in supporting this new mission.
Yeo, "Transient interference excision in over-the-horizon radar using adaptive time-frequency analysis," IEEE Transactions on Geoscience and Remote Sensing, vol.
Not to be left behind by the "Colonies", the UK has decided to collaborate with the US on a two-year joint trial of the Navy's over-the-horizon radar in the UK.
Australia Completes New Phase of Its Over-the-Horizon Radar Network
Contract Awarded to Maintain an over-the-horizon radar system.
This business has successfully delivered dozens of programs to State and Federal Government organisations and commercial customers since the original contract with the Department of Defence to develop the Jindalee Over-the-Horizon Radar Network (JORN), which remains one of Australia s largest indigenous technology national security projects.
However, if one wished to connect to an over-the-horizon radar simulator to see its influence on the combat, it would need heading and other information from aircraft halfway around the simulated world.
Mr Robert also commended DSTO s world-leading contribution to fields such as hypersonics, over-the-horizon radar and aircraft structural integrity.
We have agreed to undertake joint research in a range of areas including predictive logistics, trusted assurance, the Aegis combat system, over-the-horizon radar, hyper-sonics and operational analysis".
According to the Australian Department of Defence (DoD), the 10 years agreement includes predictive logistics technologies, Lockheed Martin s Aegis combat system, over-the-horizon radar, hypersonics and operational analysis.
The system receives surveillance data from many different sources, including the over-the-horizon radar system, civil and military air traffic agencies, and military surveillance radars.

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