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http://dx.doi.org/10.6109/jkiice.2016.20.3.677

Analysis of Anti-jamming for GPS Guided Missile by GPS Reception Azimuth Control  

Choi, Chang-Mook (Department of Navigation, Naval Academy)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.20, no.3, 2016 , pp. 677-682 More about this Journal
Abstract
Recently, because Global Positioning System (GPS) achieves accuracy for engagement of enemy targets, GPS guided weapons have a wide range of applications from land through sea to air. Especially, when GPS guided weapon is then launched, it reads current position and searches a course to the target. As we all know, because GPS signals are weak, these signals can be affected by interference. If jamming signal is strong enough, it can jam the receiver of GPS guided weapon. Therefore, anti-jamming technique is an important thing under these conditions. In this paper, the controlling azimuth angle was used to improve navigation performance of precision guided missile under jamming conditions. First of all, precision missiles by GPS positioning such as SLAM-ER and JDAM were investigated. Also, the azimuth cutoff angle of satellites for usable navigation under jamming signals was analyzed by experimental tests. As a result, we found that azimuth cutoff angle under 140 degree can help ensure continuous GPS reception under the missile guidance.
Keywords
Guided weapon; Jamming signal; Controlling azimuth; Navigation; GPS;
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Times Cited By KSCI : 1  (Citation Analysis)
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