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대전차 위협체 상태추정을 위한 퍼지 규칙기반 적응적 칼만필터
이의혁,조규공,박상순,강윤식,Lee, Eui-Hyuk,Cho, Kyu-Gong,Park, Sang-Soon,Kang, Youn-Sik 한국군사과학기술학회 2012 한국군사과학기술학회지 Vol.15 No.1
To neutralize fast Anti-Tank Guided Missiles(ATGMs) or Anti-Tank Rockets(ATRs) projected at short ranges, the trajectories and times that the threats arrive at hard-kill systems should be predicted precisely. The trajectories of ATGMs or ATRs are almost stationary but the velocity and acceleration are very changeable in the terminal stage, so that it is needed to predict the characteristics of ATGMs and ATRs for filtering. In this paper the Fuzzy Rule based Adaptive Kalman Filter(FRAKF) is proposed to estimate the position, velocity and acceleration of the threats with accuracy and the performance of it is compared with the existing tracking filter considering the maneuvering characteristics of threats.
이의혁,Lee Eui-Hyuk 한국군사과학기술학회 2004 한국군사과학기술학회지 Vol.7 No.3
Image enhancement for Infrared imaging system is mainly based on the global histogram equalization. The global histogram equalization(GHE) is a method in which each pixel is equalized by using a whole histogram of an image. GHE is speedy and effective for real-time imaging system but its method fails to enhance the fine details. On the other hand, the basic local histogram equalization(LHE) method uses sliding a window and. the pixels under the window region are equalized over the whole output dynamic range. The LHE is adequate to enhance the fine details. But this method is computationally slow and noises are over-enhanced. So various local histogram equalization methods have been already presented to overcome these problems of LHE. In this paper, a new regional dynamic range histogram equalization (RDRHE) is presented. RDRHE improves the equalization quality while reducing the computational burden.
미사일/로켓 방어체계의 RPG-7에 대한 전차방호 성능분석
하종수,이의혁,이현아,박규철,조규공,Ha, Jong-Soo,Lee, Eui-Hyuk,Lee, Hyun-Ah,Park, Gyu-Churl,Cho, Kyu-Gong 한국군사과학기술학회 2014 한국군사과학기술학회지 Vol.17 No.3
MRDS is a short range missile/rocket defense system which protects a main battle tank(MBT) from threats at a short range. It is composed of 2 radars, 2 infrared trackers(IRT)s, 1 fire control computer(FCC), 2 launchers and countermeasures. In this paper, the radar and the IRT models based on sensing errors, the FCC model based on filtering errors, the launcher model based on driving errors and the countermeasure model based on flying errors are proposed to analyze the defense performance with the approaching RPG-7 and the moving MBT. The simulation results are presented to evaluate and verify the effectiveness of the proposed method.
하종수,이의혁,이현아,박규철,조규공,Ha, Jong-Soo,Lee, Eui-Hyuk,Lee, Hyun-Ah,Park, Gyu-Churl,Cho, Kyu-Gong 한국군사과학기술학회 2014 한국군사과학기술학회지 Vol.17 No.3
MRDS is a short range missile/rocket defense system which protects a main battle tank(MBT) from threats in a short range. It is composed of 2 radars, 2 infrared trackers(IRTs), 1 fire control computer(FCC), 2 launchers and countermeasures. To guarantee the performance of the MRDS, these components have to be mounted on the vehicle with the known positions and directions and it is required to compensate the alignment errors. In this paper, a system alignment method using angular error compensation is proposed to install its components within a tolerance on the MBT. The test results are presented to evaluate and verify the effectiveness of the proposed method.