| A Method Eliminating the Interference Signal for the Test of the Radar Electronic Protection Performance |
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Hoi-In Jung, Sung-Ho Lee |
| 레이더 전자보호 성능시험을 위한 송.수신 간섭신호 제거 기법 |
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정회인, 이성호 |
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국방과학연구소 |
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| Abstract |
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Jamming simulator has developed for the purpose of the test and evaluation on the electronic protection capabilities of the tracking radar onboard ship. This simulator has the capabilities to generate and radiate the jamming signals against the radar as well as those to receive, analyze and identify the radar signals at a real sea environment. The limited space of ship superstructure has led to the serious distortion caused by the ring around phenomenon that some sidelobes of the jamming beams were coming back to the receiving antenna. In this paper, we have proposed the methods to eliminate the ring around. First, we have inserted the groove metal screen between transmitting and receiving antennas. Second, we have used the PRI(Pulse Repetition Interval) tracking loop to control the switching timing of the input radar and the output jamming signal. Finally, we have demonstrated the performance and effectiveness of the proposed methods through the sea trial. |
| Key Words:
Jamming Simulator, Ring Around, DRFM, Groove Metal Screen, PRI Tracking Loop |
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