This paper aims to introduce a case of improving the performance of aged naval ships' Identification Friend or Foe(IFF) equipment from Mode 4 to Mode 5, thereby enhancing operational capabilities and overcoming integration limitations. Since 2019, South Korea has been conducting a project to replace IFF equipment across the entire military, categorized into naval ship, air force aircraft, surveillance and reconnaissance, and protection. Among these, three naval classes without combat systems required not only an upgrade of their IFF equipment from Mode 4 to Mode 5 but also an integration capability that would allow them to maintain the same fire control procedures by linking with existing naval gun fire control systems. To implement this integration function, the signal processing methods of the existing IFF equipment were analyzed, and based on this, the integration function was implemented in a signal converter module. This paper is expected to serve as an important resource for future performance upgrades of internal equipment in aged naval ships.

This study was developed to recognize the occurrence of 250[m] of experimental distance, rain and nighttime as an educational and training device without any safety accidents by applying algorithms to optical filters and noise filters to be used in all weather environments and closest to actual shooting training using IR Laser. There are live-fire shooting using live ammunition, screen shooting using beam project and screen, MILES using IR Laser and sensor, BB shooting using compressed gas and BB bullet, and painting shooting using CO2 gas and paint bullet. Among them, the actual shooting training is not efficient in terms of management and operation because it requires considerable risk factors and large costs in preparation for the highest efficiency. Therefore, training that replaces these problems is needed, and various alternative shooting training is being implemented. Therefore, research and development was conducted to solve these problems by using it as one of efficient shooting training and education systems. This study was conducted to develop high-performance and low-cost precision shooting training equipment to contribute to strengthening the defense of the Republic of Korea.

In this paper, the goal is to obtain a dynamic model of a particular system. The system is a combination of a wheeled vehicle(chassis) with a turret rotating in azimuth direction and a gun rotating in a elevation direction. At this time, the motion of the gun according to the shaking of the continuous shot is obtained using the coordinate transformation equation in the azimuth and elevation angle. Also, the dynamic model for the swaying of wheeled vehicle is obtained through the Lagrange’s equation. Through this, we analyze the tumbles of the gun, whiat is the major term, and what dynamics are needed for stabilization control.

Recently, drones are widely used for various purposes. Among them, it has long been used for military purposes. A drone is an effective asymmetrical power that can strike opponents at low cost. On the other hand, Jammer to subdue drones are also being developed and put into practical use. In this study, a study was conducted to ensure that the weapon system was equipped with an additional Jammer at low cost, and to respond to threats to small drones and drones, by securing an shock resistance t through the transient response analysis of the shooting impact.

We focus on the weapon target assignment and fire scheduling problem (WTAFSP) with the objective of minimizing the makespan, i.e., the latest completion time of a given set of firing operations. In this study, we assume that there are m available weapons to fire at n targets (> m). The artillery attack operation consists of two steps of sequential procedure : assignment of weapons to the targets; and scheduling firing operations against the targets that are assigned to each weapon. This problem is a combination of weapon target assignment problem (WTAP) and fire scheduling problem (FSP). To solve this problem, we define the problem with a mixed integer programming model. Then, we develop exact algorithms based on a dynamic programming technique. Also, we suggest how to find lower bounds and upper bounds to a given problem. To evaluate the performance of developed exact algorithms, computational experiments are performed on randomly generated problems. From the results, we can see suggested exact algorithm solves problems of a medium size within a reasonable amount of computation time. Also, the results show that the computation time required for suggested exact algorithm can be seen to increase rapidly as the problem size grows. We report the result with analysis and give directions for future research for this study. This study is meaningful in that it suggests an exact algorithm for a more realistic problem than existing researches. Also, this study can provide a basis for developing algorithms that can solve larger size problems.

In this paper, dynamic model of 120mm self-propelled mortar is developed, and multi flexible body dynamics analysis is performed to analyze stresses occurring in the mount during mortar fire. For this, vehicle dynamic system, mortar dynamic system, and finite element mount model are proposed. The commercial program Recurdyn is used in the analysis. As a result of the analysis, the maximum stress(146.9MPa) occurred at the mount side plate. In order to analyze the validity of the analysis results, we performed strain measurement tests by selecting three major points, and the errors of results were 7.91%, 11.15%, and 18.23%, respectively. It is confirmed that the tendency of analysis and test is similar.

We focus on the fire scheduling problem (FSP), the problem of determining the sequence of targets to be fired at, for the objective of minimizing makespan to achieve tactical goals. In this paper, we assume that there are m available weapons to fire at n targets (> m) and the weapons are already allocated to targets. One weapon or multiple weapons can fire at one target and these fire operations should start simultaneously while the finish time of them may be different. We develop several dominance properties and a lower bound for the problem, and suggest a branch and bound algorithm implementing them. Also, In addition, heuristic algorithms that can be used for obtaining an initial upper bound in the B&B algorithm and for obtaining good solutions in a short time were developed. Computational experiments are performed on randomly generated test problems and results show that the suggested algorithm solves problems of a medium size in a reasonable amount of computation time. The proposed lower bound, the dominance properties, and the heuristics for upper bound are tested in B&B respectively, and the result showed that lower bound is effective to fathoming nodes and the dominance properties and heuristics also worked well. Also, it is showed that the CPU time required by this algorithm increases rapidly as the problem size increases. Therefore, the suggested B&B algorithm would be limited to solve large size problems. However, the employed heuristic algorithms can be effectively used in the B&B algorithm and can give good solutions for large problems within a few seconds.

The live fire test has been playing a critical role in evaluating the goals-to-meet of the weapon systems which utilize the power of explosives. As such, the successful development of the test systems therein is quite important. The test systems development covers that of ranges and facilities including system-level key components such as mission control, instrumentation or observation, safety control, electric power, launch pad, and so on. In addition, proper operational guidelines are needed with well-trained test and operation personnel. The emerging weapon systems to be deployed in future battle field would thus have to be more precise and dynamic, smarter, thereby requiring more elaboration. Furthermore, the safety consideration is becoming more serious due to the ever-increasing power of explosives. In such a situation, development of live fire test systems seems to be challenging. The objective of the paper is on how to incorporate the safety and other requirements in the development. To achieve the goal, an architectural approach is adopted by utilizing both the system components relationship and safety requirement when advanced instrumentation technology needs to be developed and deteriorated components of the range are replaced. As an evaluation method, it is studied how the level of maturity of the test systems development can be assessed particularly with the safety requirement considered. Based on the concepts of both systems engineering and SoS (System-of-Systems) engineering process, an enhanced model for the system readiness level is proposed by incorporating safety. The maturity model proposed would be helpful in assessing the maturity of safety-critical systems development whereas the costing model would provide a guide on how the reasonable test resource allocation plan can be made, which is based on the live fire test scenario of future complex weapon systems such as SoS.

An effective method for produce munitions effectiveness data is to calculate weapon effectiveness indices in the US military’s Joint Munitions Effectiveness Manuals (JMEM) and take advantage of the damage evaluation model (GFSM) and weapon Effectiveness Evaluation Model (Matrix Evaluator). However, a study about the Range Safety that can be applied in the live firing exercises is very insufficient in the case of ROK military. The Range Safety program is an element of the US Army Safety Program, and is the program responsible for developing policies and guidance to ensure the safe operation of live-fire ranges. The methodology of Weapon Danger Zone (WDZ) program is based on a combination of weapon modeling/simulation data and actual impact data. Also, each WDZ incorporates a probability distribution function which provides the information necessary to perform a quantitative risk assessment to evaluate the relative risk of an identified profile. A study of method to establish for K-Range Safety data is to develop manuals (pamphlet) will be a standard to ensure the effective and safe fire training at the ROK military education and training and environmental conditions. For example, WDZs are generated with the WDZ tool as part of the RMTK (Range Managers Tool Kit) package. The WDZ tool is a Geographic Information System-based application that is available to operational planners and range safety manager of Army and Marine Corps in both desktop and web-based versions. K-Range Safety Program based on US data is reflected in the Korean terrain by operating environments and training doctrine etc, and the range safety data are made. Thus, verification process on modified variables data is required. K-Range Safety rather than being produced by a single program, is an package safety activities and measures through weapon danger zone tool, SRP (The Sustainable Range Program), manuals, doctrine, terrain, climate, military defence M&S, weapon system development/operational test evaluation and analysis to continuously improving range safety zone. Distribution of this K-range safety pamphlet is available to Army users in electronic media only and is intended for the standing army and army reserve. Also publication and distribution to authorized users for marine corps commands are indicated in the table of allowances for publications. Therefore, this study proposes an efficient K-Range Safety Manual producing to calculate the danger zones that can be applied to the ROK military’s live fire training by introducing of US Army weapons danger zone program and Range Safety Manual

Successful development of weapon systems requires a stringent verification and validation (V&V) process due to the nature of the weapons in which continual increase of operational capability makes the system requirements more complicated to meet. Thus, test and evaluation (T&E) of weapon systems is becoming more difficult. In such a situation, live fire tests appear to be effective and useful methods in not only carrying out V&V of the weapon systems under development, but also increasing the maturity of the end users operability of the system. However, during the process for live fire tests, a variety of accidents or mishaps can happen due to explosion, pyro, separation, and so on. As such, appropriate means to mitigate mishap possibilities should be provided and applied during the live fire tests. To study a way of how to accomplish it is the objective of this paper. To do so, top-level sources of hazard are first identified. A framework for T&E is also described. Then, to enhance the test range safety, it is discussed how test scenarios can be generated. The proposed method is based on the use of the anticipatory failure determination (AFD) and multiple event tree analysis (ETA) in analyzing range safety. It is intended to identify unexpected hazard components even in the environment with constraints. It is therefore expected to reduce accident possibilities as an alternative to the traditional root-cause analysis.

In weapon systems development, live fire tests have been frequently adopted to evaluate the performance of the systems under development. Therefore, it is necessary to ensure safety in the test ranges where the live fire tests can cause serious hazards. During the tests, a special care must be taken to protect the test and evaluation (T&E) personnel and also test assets from potential danger and hazards. Thus, the development and management of the range safety process is quite important in the tests of guided missiles and artillery considering the explosive power of the destruction. Note also that with a newly evolving era of weapon systems such as laser, EMP and non-lethal weapons, the test procedure for such systems is very complex. Therefore, keeping the safety level in the test ranges is getting more difficult due to the increased unpredictability for unknown hazards. The objective of this paper is to study on how to enhance the safety in the test ranges. To do so, an approach is proposed based on model-based systems engineering (MBSE). Specifically, a functional architecture is derived utilizing the MBSE method for the design of the range safety process under the condition that the derived architecture must satisfy both the complex test situation and the safety requirements. The architecture developed in the paper has also been investigated by simulation using a computer-aided systems engineering tool. The systematic application of this study in weapon live tests is expected to reduce unexpected hazards and test design time. Our approach is intended to be a trial to get closer to the recent theme in T&E community, "Testing at the speed of stakeholder's need and rapid requirement for rapid acquisition."

This paper focuses on scheduling problems arising in the military. In planned artillery attack operations, a large number of threatening enemy targets should be destroyed to minimize fatal loss to the friendly forces. We consider a situation in which the

This dissertation focuses on scheduling problems arising in the military. In planned artillery attack operations, a large number of threatening enemy targets should be destroyed to minimize fatal loss to the friendly forces. We consider a situation in which the number of available weapons is smaller than the number of targets. Therefore it is required to develop a new sequencing algorithm for the unplanned artillery attack operation. The objective is to minimize the total loss of the targets, which is expressed as a function of the fire power potential, after artillery attack operations are finished. We develop a algorithm considering the fire power potential and the time required to destroy the targets. The algorithms suggested in this dissertation can be used in real artillery attack operations if they are modified slightly to cope with the practical situations.

This paper considers the simultaneously firing model for the artillery operations. The objective of this paper is to find the optimal fire sequence minimizing the final completion time of the firing missions of multiple artillery units for multiple target

This paper considers the simultaneously firing model for the artillery operations. The objective of this paper is to find the optimal fire sequence minimizing the final completion time of the firing missions of multiple artillery units for multiple targets. In the problem analysis, we derive several solution properties to reduce the solution space. Moreover, two lower bounds of objective are derived and tested along with the derived properties within a branch-and-bound scheme. Two efficient heuristic algorithms are also developed. The overall performances of the proposed branch-and-bound and heuristic algorithms are evaluated through various numerical experiments.

The purpose of this study is to show that the reason behind the ambivalentcharacteristic displayed in Niki de Saint Phalle’s works is in her trauma and how suchcharacteristic can be extracted from her works. During her creative years, Saint Phalleworked on various materials from different genres such as assemblages, shooting paintings, aseries on Bride and Monster, ‘Nana’, ‘Tarot Garden’and public sculptures. Onecommonality found among her various works is the ambivalent characteristic that containscontrasting elements simultaneously. Saint Phalle suffered a terrible psychological damageinflicted by her parents during her childhood. Specifically, she was sexually assaulted by herfather and emotionally neglected by her mother, the trauma that affected her for the rest ofher life. As a result, she came to develop extreme love-hate relationships with her parentsand this became the main reason for the ambivalent characteristic displayed in her works. The love-hate relationship Saint Phalle developed can be identified through variousresearches done on the subject of the affect of sexual assault. It is common for incestvictims to develop ambivalent feelings towards the perpetrator and Saint Phalle was noexception.Dissociation disorder and a snake well explain the trauma from her father. It is agenerally accepted belief in the field of psychology that dissociation disorder commonly occursto children who experience incest. And dissociation disorder is similar to the characteristic ofambivalence in the sense that a single entity contains more than two contrasting elements at thesame time. In addition, the amputated doll objects used in her assemblages coincide with theexpression of body detachment of people with dissociation disorder. These facts clearly indicatethat the trauma from her father is showing through in her works.A snake is a subject matter that reflects the ambivalent tendency of Saint Phalle thatresulted from her trauma. She remembers her father’s rape as an image of a snake which is related to a phallic symbol in mythology or art reflecting her trauma. Moreover, shedisplays a similar pattern of ambivalent emotion like love and hate or fear towards a snakeand her father. This is also confirmed by her portrayal of a snake as a monster or reverselyas a creature with fundamental vitality in her works. The lack of affection from her mother can be explained by her mother’s maternaldeprivation. It appears that Saint Phalle’s mother possessed all the causes for maternaldeprivation such as maternal separation, personality disorder and inappropriate attitudetowards child rearing. Especially, a study that shows mother’s negative attitude towardschild breeding tends to increase dissociation experience of children is another importantevidence that supports Saint Phalle’s dissociation tendency. These traces of Saint Phalle’s trauma are clearly revealed in her assemblages andshooting paintings. The violent objects in her assemblages such as a hammer, razor, nailrepresent the rage and defensiveness towards her father. The objects such as fragments ofbroken plates of feminine patterns, pots and mirrors that her mother used symbolize theaffection towards her mother. On the other hand, the destructed objects can be interpretedas her hate and resentment towards her mother. Shooting paintings contain her extremefury and hate. Things such as acts of shooting and the image associated with blood aftershooting are blunt expressions of her bursts of emotions.I have tried to define and classify the ambivalent characteristics shown in herassemblages and shooting paintings as hate, rage, violence, calm, love and pleasureaccording to the frame ofThanatos and Eros. Out of the six, hate, rage, violence and clamare associated with Thanatos while love and pleasure are associated with Eros and theycorrespondingly form an ambivalent structure.These ambivalent characteristics can be found in her assemblages and shootingpaintings. The objects in her assemblages such as a razor, saw, hammer imply hate, rage,violence and the silence felt throughout her works represent calmness. And, as mentioned,the feminine objects can be seen as symbolizing love. In shooting paintings, hate, rage,violence can be found in the use of force and in the traces of watercolor after shooting,and a sense of pleasure in her feelings of catharsis after her shooting. Moreover, a shieldedcalmness can be found on the plywood all covered with plaster before the shooting. This study looked into the ambivalent characteristic of Saint Phalle’s works byexamining her trauma to find its correlation, and a meaning of this study can be found fromthe fact that it refocused the origin of Saint Phalle who is generally known as a feministartist. Additionally, a meaning of the study can be found also from the fact that it examinedthe ambivalent characteristics of her works through a frame of Thanatos and Eros.

목적: 본 연구는 엘리트 사격선수들이 시합 때 활용하는 정서지능과 몰입의 차이를 소속에 따라 검증하고, 정서 지능과 몰입의 하위요인이 시합점수에 미치는 영향을 알아보기 위한 목적으로 수행되었다. 방법: 이를 위하여 201명의 엘리트 사격 선수를 표집하여 설문을 실시하였으며, COVID-19에 따른 방역지침을 준수하여, 온라인으로 설문을 진행하였다. 수집된 설문 응답 자료는 탐색적, 확인적 요인분석 및 다변량 분석과 다중회귀분석을 활용하 여 분석하였다. 결과: 소속에 따른 정서지능의 차이를 알아본 결과 정서활용에서 대학교 선수가 실업 및 국가대 표 선수에 비하여 정서활용 수준이 높은 것으로 나타났다. 또한 소속에 따른 몰입의 차이를 알아본 결과 대학교 사격 선수가 높은 수준의 몰입을 경험하는 것으로 나타났다. 마지막으로 시합점수에 영향을 미치는 정서지능과 몰입의 요인을 알아본 결과 정서지능의 정서조절과 몰입의 변형된 시간감각이 시합점수에 영향을 미치는 것으로 나타났다. 결론: 이러한 연구결과는 사격선수들이 경기력을 높이기 위해서는 정서조절과 시간이 지나감을 잊을 정도의 몰입을 하는 것이 도움이 된다는 정보를 현장에 제공할 수 있다.

목적: 본 연구의 목적은 사격 소총 선수 1명을 대상으로 긍정심리기법을 활용한 심리기술훈련이 심리변화와 경기력에 미치는 효과를 분석하는 것이다. 방법: 연구목적을 달성하기 위해 단일피험자 사례설계를 활용하였으며, 긍정심리자본, 스포츠수행전략, 심박변이도, 경기결과 분석, 심층면담을 통해 심리기술훈련의 효과를 확인하였다. 심리기술훈련 프로그램은 긍정심리기법, 목표설정, 루틴개발, 심상훈련, 이완훈련, 주의집중을 주제로 총 40주간 사전단계, 훈련단계, 사후단계로 구분하여 적용하였다. 결과: 긍정심리기법을 활용한 심리기술훈련 적용 결과 긍정 심리자본, 스포츠수행전략, 심박변이도는 물론 경기력이 긍정적으로 변화되었다. 결론: 연구대상자에게 적용된 긍정심리기법은 긍정적인 정서유발을 통해 부정적 정서와 사고를 효과적으로 대처하여 주 호소문제가 해결되었다고 사료된다. 현재 국내 선수경기력 향상을 위한 심리기술훈련 기법은 비교적 한정적인 관계로 다수의 종목 및 포지션에 따른 세심한 심리기술 적용이 제한되어 있다. 이에 후속연구에서는 긍정심리기법을 적용한 다양한 연구들이 시도되어야 한다.