JOURNAL ARTICLE

Time Synchronization Using Mutual Interference in Two FMCW Radars

Byung-Lae ChoJung‐Soo LeeJong‐Min LeeSun-Gu Sun

Year: 2012 Journal:   The Journal of Korean Institute of Electromagnetic Engineering and Science Vol: 23 (11)Pages: 1323-1326   Publisher: The Korean Institute of Electromagnetic Engineering and Science

Abstract

군사적 목적으로 많은 레이다들이 근거리에서 동시에 운용된다. 특히, 동종의 레이다가 동시에 운용될 경우 주파수 할당을 해야 한다. 많은 레이다가 동시에 운용될 때 일부 주파수를 공유하여야 하는데, 부득이하게 레이다 시스템 간 간섭이 발생하게 된다. 레이다간 간섭은 성능을 저하시킬 수 있기 때문에, 간섭 신호의 억제는 중요한 문제이다. 본 논문에서는 두 대의 FMCW 레이다간 간섭 신호를 분석하고, 간섭 신호를 이용하여 레이다간 시간 동기화 방법을 제안하였다. 실제 레이다 시스템을 통해 제안된 방법의 성능을 검증하였다. In military applications, many radar systems are simultaneously operated at a close range. In particular, the frequency allocation must be executed for operating the homogeneous radar systems at the same time. As many radar systems are simultaneously operated with overlapping frequency bands, interference between systems inevitably occurs. Because interference can degrade radar performance, suppression of interference is a critical issue in radar systems. In this letter, we analyze the interference between two FMCW radars. In addition, time synchronization method between radars using mutual interference is proposed. Experiments are carried out to validate the proposed method. The results demonstrate that the proposed method is suitable for real radar systems.

Keywords:
Continuous-wave radar Radar Interference (communication) Computer science Synchronization (alternating current) Radar engineering details Bistatic radar Electronic engineering Fire-control radar Engineering Telecommunications Radar imaging Channel (broadcasting)

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Topics

Radar Systems and Signal Processing
Physical Sciences →  Engineering →  Aerospace Engineering
Power Line Communications and Noise
Physical Sciences →  Engineering →  Electrical and Electronic Engineering
Engineering and Test Systems
Physical Sciences →  Engineering →  Control and Systems Engineering

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