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논문 기본 정보

자료유형
학술대회자료
저자정보
Chang-Mook Choi (Korea Naval Academy)
저널정보
한국정보통신학회 INTERNATIONAL CONFERENCE ON FUTURE INFORMATION & COMMUNICATION ENGINEERING 2015 INTERNATIONAL CONFERENCE ON FUTURE INFORMATION & COMMUNICATION ENGINEERING Vo.7 No.1
발행연도
2015.6
수록면
498 - 501 (4page)

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초록· 키워드

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Global Positioning System (GPS) is based on measuring the time that a signal comes from a satellite to a receiver. But, because GPS signals are weak, system interference is a real and present danger. This can happen when the receiver is subject to intentional or unintentional interference by a transmitter. If the interference is strong enough, it can jam the receiver. When jamming signals are present in GPS receiver antenna, the receiver would be operated to take corrective action automatically. Current methods to protect GPS receiver from jamming condition are based on spatial filtering. In this paper, the beamforming as referred to in signal processing technique used in arrays for directional signal reception was suggested and analyzed for anti-jamming. To change the directionality of the array when receiving, a beamformer can control the signal at each sensor. Therefore, cutoff angle θ was measured relative to the direction opposite the jammer. GPS signals are only processed when the antenna element is inside the cutoff angle.

목차

Abstract
I. INTRODUCTION
II. BEAMFORMING
III. TEST RESULTS AND DISCUSSIONS
IV. CONCLUSIONS
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