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J. KIMS Technol > Volume 15(1); 2012 > Article
Journal of the Korea Institute of Military Science and Technology 2012;15(1):66-74.
DOI: https://doi.org/10.9766/KIMST.2012.15.1.066   
Development of Virtual Target Signal Generator for Verifying the Shipborne Tracking Radar Performance
Hui-Min Yi, Jae-Hyun Son, Young-Jin Na, Dong-Hawn Kim
함정용 추적레이더 성능 검증을 위한 모의표적신호발생장치 개발
이희민, 손재현, 나영진, 김동환
1삼성탈레스 레이더연구소
The virtual target signal generator was developed to verify the shipborne tracking radar performance. It was used to DRFM(Digital RF Memory) method to generate the virtual moving targets. The target signal includes Doppler shift and RCS according to the target motion. And the signal generator can make jamming signal and clutter to test shipborne radar performance at real environmental condition. This paper described the functional diagram and the hardware configuration items to meet the test requirements for the tracking radar. And it showed the critical design points for the sub-systems. The signal generator which was developed in this paper shared the operational information of the radar with the radar command and control part. To test the frequency agility of the radar, it had the local oscillator which could do high speed frequency switching according to radar information. By communicating between the signal generator and the radar command and control part, the local oscillator of signal generator could be controlled every pulse. It reduced the instantaneous bandwidth of signal generator and minimized the spurious. So it lowered the probability of generating wrong targets.
Key Words: Virtual Target Signal Generator, DRFM, Tracking Radar


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