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Journal of the Korea Institute of Military Science and Technology 2000;3(2):121-130.
A performance improvement method in the gun fire control system compensating for measurement bias error of the target tracking sensor
Jae-Hun Kim, Joon Lyou
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표적추적센서의 측정 바이어스 오차 보상에 의한 사격통제장치 성능 향상 기법
김재훈, 유준
1국방과학연구소
2충남대학교 전자공학과
Abstract
A practical method is proposed to improve hit probability of the digital gun fire control system, when the measured rate of the tracking sensor becomes biased under some operational situation. For ground moving target it is shown that the well-known Kalman filter which uses position measurement only can be optimally used to eliminate the rate bias error. On the other hand, for 3D moving aircraft we present a new algorithm which incorporate FIR-type filter, which uses position and rate measurement at the same time, and the fixed-lag smoother using position measurement only, and show that it has the optimal performance in terms of both estimation accuracy and response time.
Key Words: target state estimator, finite impulse response filter, fixed-lag smoother, rate measurement bias error, digital fire control system
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