释义 |
over-the-horizon radar
over-the-horizon radarA 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.over-the-horizon radar
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 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.See OTH-R See OTHR |