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초고속 표적의 탄도계수와 예상요격지점 정확도의 상관관계 분석 연구
이동관,조길석,신진화,김지은,Lee, Dong-Gwan,Cho, Kil-Seok,Shin, Jin-Hwa,Kim, Ji-Eun 한국군사과학기술학회 2014 한국군사과학기술학회지 Vol.17 No.2
A recent air defense missile system(ADMS) is required to have a capability to intercept super-high speed targets such as tactical ballistic missiles(TBMs) by performing engagement control efficiently. The air defense missile system should be ready to engage the TBMs as soon as the ADMS detects TBMs because falling velocity of TBM is very high and remaining time interval to engage TBM is very short. As a result, the ADMS has to predict the trajectories of TBMs accurately with estimated states of dynamics to generate predicted intercept point(PIP). In addition, it is needed to engage TBMs accurately via transmitting the obtained PIP data to the corresponding intercept missiles. In this paper, an analysis about the relationship between ballistic coefficient and PIP accuracy which is depending on geodetic height of the first detection of TBM is included and an issue about effective engagement control for the TBM is considered.
큐잉 데이터 기반 하층방어 요격체계의 초고속 표적 탐지 방향 지정을 위한 정밀 궤적예측 기법
이동관,조길석,신진화,김지은,권재우,Lee, Dong-Gwan,Cho, Kil-Seok,Shin, Jin-Hwa,Kim, Ji-Eun,Kwon, Jae-Woo 한국군사과학기술학회 2013 한국군사과학기술학회지 Vol.16 No.4
A recent air defense missile system is required to have a capability to intercept short-range super-high speed targets such as tactical ballistic missile(TBMs) by performing engagement control efficiently. Since flight time and distance of TBM are very short, the missile defense system should be ready to engage a TBM as soon as it takes an indication of the TBM launch. As a result, it has to predict TBM trajectory accurately with cueing information received from an early warning system, and designate search direction and volume for own radar to detect/track TBM as fast as it can, and also generate necessary engagement information. In addition, it is needed to engage TBM accurately via transmitting tracked TBM position and velocity data to the corresponding intercept missiles. In this paper, we proposed a method to estimate TBM trajectory based on the Kepler's law for the missile system to detect and track TBM using the cueing information received before the TBM arrives the apogee of the ballistic trajectory, and analyzed the bias of prediction error in terms of the transmission period of cueing data between the missile system and the early warning system.
장부철,조길석,신진범,구봉주,Jang, Bu-Cheol,Cho, Kil-Seok,Shin, Jin-Beom,Koo, Bong-Joo 한국군사과학기술학회 2014 한국군사과학기술학회지 Vol.17 No.4
We proposed a design method for squib current supply & interlock circuits in guided-missile fire control systems. In order to design squib current supply circuits, various missile squib loads including line resistance and squib devices have to be considered in advance minimizing probability of redesign of circuits and reducing the development cost by implementing the most proper squib current supply circuit. Also, we presented a hardware interlock logic instead of the commonly used software safety logic to improve the safety of guided-missile fire control systems. The proposed squib interlock circuit enhances safety requirements of guided-missile fire control systems. We confirmed that simulation and measurement results of the proposed design method are the same as theoretical analysis results.
DEVS형식론을 적응한 HLA기반의 분산 실시간 시뮬레이션 시스템 개발
김호정,이재현,조길석,Kim, Ho-Jeong,Lee, Jae-Hyun,Cho, Kil-Seok 한국군사과학기술학회 2006 한국군사과학기술학회지 Vol.9 No.3
Weapon systems composed of several subsystems execute various engagement missions in distributed combat environments in cooperation with a large number of subordinate/adjacent weapon systems as well as higher echelons through tactical data links. Such distributed weapon systems require distributed real-time simulation test beds to integrate and test their operational software, analyze their performance and effects of cooperated engagement, and validate their requirement specifications. These demands present significant challenges in terms of real-time constraints, time synchronization, complexity and development cost of an engagement simulation test bed, thus necessitate the use of high-performance distributed real-time simulation architectures, and modeling and simulation techniques. In this paper, in order to meet these demands, we presented a distributed real-time simulation system based on High Level Architecture(HLA) and Discrete Event System Specification(DEVS). We validated its performance by using it as a test bed for developing the Engagement Control System(ECS) of a surface-to-air missile system. The proposed technique can be employed to design a prototype or model of engagement-level distributed real-time simulation systems.
Munkres 최적할당 기법을 적용한 무기할당 알고리즘
김지은,신진화,조길석,Kim, Ji-Eun,Shin, Jin-Hwa,Cho, Kil-Seok 한국군사과학기술학회 2010 한국군사과학기술학회지 Vol.13 No.1
This paper presents global and optimal solution for weapon assignment problems using the Munkres assignment algorithm. We propose a new modeling method of weapon assignment problems concerning some constraints of weapon systems. In this paper, we compares the Munkres weapon assignment algorithm with two other algorithms employing a search tree model in terms of computational complexity and performance. One is an optimal algorithm using exhausted search and the other is a greedy algorithm which selects the first search result as a solution. The experiment results show that the Munkres weapon assignment algorithm has better performance and less computational complexity in comparison with the two other algorithms.
UML 2.0 모델 기반의 교전통제 소프트웨어 아키텍처 개발
유명환,배정일,신진화,조길석,Yoo, Myong-Hwan,Bae, Jung-Il,Shin, Jin-Hwa,Cho, Kil-Seok 한국군사과학기술학회 2007 한국군사과학기술학회지 Vol.10 No.4
The engagement control software embedded in the weapon control computer of the fire control center for air defense missile system is large-scale real-time software. The use of typical software development methodologies is not appropriate to develop such large-scale embedded software in terms of reusability, reliability, and productivity for the reason that it is significantly complicated, and highly dependent on hardware platforms and developers. In this paper, a model-based software architecture using components based on UML 2.0 for the engagement control software is presented in order to solve these problems. This software architecture is verified using the black-box test, the scenario-based test, and the Ethernet packet monitoring test methods. The results demonstrate that the developed software architecture can be employed to enhance reusability, maintainability, and productivity of large-scale embedded software.
최원용,홍순목,이동관,정재경,조길석,Choi, Won-Yong,Hong, Sun-Mog,Lee, Dong-Gwan,Jung, Jae-Kyung,Cho, Kil-Seok 한국군사과학기술학회 2008 한국군사과학기술학회지 Vol.11 No.6
A distributed system for tracking multiple targets with a pair of multifunction radars is proposed and implemented. The system performs track-to-track association and track-to-track fusion at the fusion center to form fused tracks. The association and fusion are performed using target state information linked via communication nodes from a radar at a remote location. Many factors can affect the track-to-track association and fusion performances. They include delays in data transmission buffer of the remote radar, the error in estimating time-stamp of the remote radar, and the gating in track-to-track association. The effects on association and fusion performances due to these factors are investigated through extensive numerical simulations.
단계 분리형 최소 자승법을 이용한 탄도 미사일의 발사지점 예측 연구
김준기(Jun-ki Kim),이동관(Dong-kwan Lee),조길석(Kil-seok Cho),송택렬(Taek-Lyul Song) 제어로봇시스템학회 2014 제어·로봇·시스템학회 논문지 Vol.20 No.4
This paper presents a method of ballistic missile launch point estimation using phase division least squares. The proposed algorithm employs smoothing to enhance estimation accuracy and generates functions of time for total velocity, flight path angle and heading angle, allowing extrapolation to estimate the launch point. Performance of the proposed algorithm is tested in conjunction with the extended Kalman filter and the Kalman filter.