• Proceedings of the Korean Information Science Society Conference
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• 2012.06b
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• pp.117-119
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• 2012

기존의 탄도방정식[2]에서 여러 조건을 제시하여 간략화된 대공화기 탄도방정식을 얻는다. 대공화기의 탄도궤적이므로 양력계수가 들어간 항의 값이 충분히 작다는 가정을 하였다. 또한 속도의 크기를 시간불변이라는 가정을 하였다. 이 탄도방정식은 기존의 방정식[1]에 비하여 밀도, 풍속, 항력계수 및 탄도계수가 식에 나타나 있어 일반적인 탄도방정식으로 이용가능하고 또한 미분방정식의 해를 구할 필요가 없다. 모의실험을 통하여 제시된 탄도방정식을 이용하여 풍속이 들어간 탄도궤적을 구한다.

• Defense and Technology
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• no.6 s.196
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• pp.58-69
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• 1995

• Defense and Technology
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• no.7 s.197
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• pp.44-51
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• 1995

• Defense and Technology
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• no.8 s.198
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• pp.70-79
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• 1995

• Defense and Technology
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• no.11 s.237
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• pp.76-87
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• 1998

우리나라와 같이 전투종심이 짧고 산악이 많은 지형에서의 저고도에 대한 공중위협은 더욱 가중되고 있어 대공화기의 중요성은 더욱 크다 하겠다. 또한 가장 도발 위험성이 높은 북한과 대치하고 있는 우리의 상황에서 적 공격기의 대지 공격능력 99.5% 이상이 폭탄, 기총, 로켓 공격임을 감안하고 또한 공격헬기를 이용한 대전차 공격과 무인항공기에 의한 위협도 증가하고 있는 추세인 점을 고려할 때 적기의 탐지로부터 격파에 이르기까지의 짧은 반응시간과 야간능력 및 유효사거리 3km내외의 명중률이 뛰어난 무기체계가 필요하게 됨은 자명한 사실이라 하겠다

• KIPS Transactions on Computer and Communication Systems
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• v.4 no.11
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• pp.361-368
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• 2015

In AAGFCS the effective range is regarded as a range for the bullet's speed exceeding the speed of sound to damage the stationary target. Hence the real engagement range might be extended over the effective range for the approaching target since bullet's relative speed to the target increases depending on the approaching speed. However previous TOF equations have good computation accuracy within the effective range only, and they can not be used above that range due to their bad accuracy. We propose an accurate TOF computation method which can be used both within and above the effective range in real time. Some simulation results are shown to demonstrate usefulness of our algorithm for the 30mm projectile.

• Defense and Technology
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• no.6 s.136
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• pp.28-35
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• 1990

재래식 총은 발사체의 속도가 너무 낮기 때문에 이동하는 목표물에 대한 명중률이 낮으므로, 현대전은 발사체 속도를 높이기를 요구한다. 이 문제는 대공화기에서 특히 절실하며, 그것은 공격하는 비행체의 속도와 고도 증가에 보조를 맞추지 못해 왔기 때문이다. 또한 실제적인 표적거동에 대하여 조준점과 탄착점과의 오차 거리는 비행시간의 제곱에 좌우되므로, 전자기 총은 사격제어 오차의 영향을 80-90%까지 감소시킬수 있다. 종말탄도 조건은 장갑두께가 변할 때 변하므로 대장갑 교전에서는 균일장갑에만 해당되나, 그럼에도 불구하고 대장갑 교전에서 장점이 기대된다

• The Journal of the Convergence on Culture Technology
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• v.4 no.3
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• pp.299-303
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• 2018

Generally, when predicting the accuracy of the anti-air artillery system, the error is classified as fixed bias, variable bias, and random error. Then the standard deviation on the target is expressed as the square root of the squared sum of each error value which comes from the random error and variable bias and in the case of fixed bias, the mean value is shifted as the sum of errors from the fixed bias. At this time, the variables indicating the displacement of the direction of azimuth and elevation direction with regard to the change of the unit value of each error are weighted. These errors are then used to predict the system's delivery accuracy through a normally distributed integral. This paper presents a method of predicting system accuracy by considering the correlation of errors. This approach shows that it helps to predict the delivery accuracy of the system, precisely.

• KIPS Transactions on Computer and Communication Systems
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• v.4 no.12
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• pp.399-408
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• 2015

In the direct Gun Fire Control System(GFCS), it is essential to analyze the impact of the specific error components on the hit probability to optimize the system design. For this purpose the sensitivity equations of these error components are conveniently used, but it is too difficult to get those equations for the complex system with too many system elements. Normally sensitivity analysis is performed using numerical and statistical methods for the ground combat system. This method requires much computation, and makes us difficult to estimate the sensitivity change of specific error component intuitionally for the changing operating conditions. In this paper we propose a set of sensitivity equations deriving from closed form solution of the ballistic differential equation for the bullet. They are handy equations with very little computations, easy to understand the physical meaning of the related system variables. Some simulation results are shown to demonstrate usefulness of our algorithm for the 30mm projectile.

• Journal of the Korea Society for Simulation
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• v.29 no.3
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• pp.1-8
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• 2020

When enemy drones infiltrate large urban areas, various forms of great republics are deployed in large areas to respond. Due to the characteristics of a large number of government-run aircraft, the residual coal, other than the hit bullet, falls into various sizes of debris after its own explosion. The damage rate was analyzed by dividing the debris into anti-aircraft guns and guided weapons by deriving four factors: critical speed, fragmentation mass, initial speed of debris, and object collision speed, which can cause damage to human life as the debris falls to the ground. In the future, the North is expected to infiltrate the capital city of Seoul by operating unmanned aerial vehicles, which are asymmetric forces, and the damage could be minimized by setting up pre-fatal and fire-restricted zones to minimize casualties between responses.