| A Direction Finding Proximity Fuze Sensor for Anti-air Missiles |
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Jae-Hyun Choi, Seok-Woo Lee, Ji-Yeon An, Kyung-Whan Yeom |
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2CNU |
| 방향 탐지용 전파형 대공 근접 신관센서 |
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최재현, 이석우, 안지연, 염경환 |
1국방과학연구소
2충남대학교 |
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| Abstract |
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This paper presents the direction finding proximity fuze sensor using the clutter rejection method and the adaptive target detection algorithm for anti-air missiles. To remove effects by clutter and detect a target accurately, the clutter rejection method of Legendre sequence with BPSK(Bi phase Shift Keying) modulation has been proposed and the Doppler signal which has cross correlation characteristics is obtained from reflected target signals. Considering the change of the Doppler signal, the adaptive target detection algorithm has been developed and the direction finding algorithm has been fulfilled by comparing received powers from adjacent three receiving antennas. The encounter simulation test apparatus was made to collect and analyze reflected signal and test results showed that the -10 dBsm target was detected over 10 meters and the target with mesh clutter was detected and direction was distinguished definitely. |
| Key Words:
BPSK, Cross-Correlation, Range Gate, Clutter Rejection, Direction Finding Fuze |
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