Earticle

One of the important factors of technology development strategies is the expected economic value of a technology. As the focus of national defense policy have been turned from domestic consumption to international consumption, a more accurate technology valuation model is required for defense industries. This research presents a new model for evaluating economic value of technologies by the modified process which adopted a Markov Chain and a Risk-averse Utility Function. The major accomplishment of this research is the designing of the process which estimates the technology market lifespan based on the probability data. It also enables us to consider the expected events. Moreover, a new technology valuation model is designed to reflect the characteristics of defense industries at the specific technique level.

The defense interoperability is gaining more and more importance as we experience the rapid progress in information technology. Problems pertaining to the acquisition of military systems are that the requirements for interoperability are not clearly defined. Therefore, it is very difficult to make an objective judgement as to whether the acquired military systems meet the interoperability requirements. In order to resolve the ambiguity of the interoperability requirements, the components of existing interoperability definitions are reorganized into a good structure based on the ontology. Based on this structure, this paper proposes a table of key elements for interoperability requirement. This table is then used to analyze the interoperability plans for ROK military systems acquisition. Based on the results of this analysis, some suggestions are proposed for improvement of the interoperability requirements.

The purpose of this paper is to analyze the successful accomplishments of new component development projects and to evaluate the success levels of the projects at each stage of the development process in Korean electronics industry. This work begins with the basic assumption that success of the component development projects depends on the mutual interaction between the effect factors and development processes. In this research, electronic component development projects were selected as the case examples to categorize projects based on their technical and market properties. Success factors at various stages of the development process were investigated by analyzing the 'cause and effect' relationship, the key influence factors, and key development processes. Major findings from this study are as follows: New projects on component development can be successful when they are activated by the interaction of the eight key effect factors and the five stages of the development process, and the research findings can be applied to constructing a causality model that explicates how these success factors affect the successful completion at each stage of the development process. The implication of this research is that we developed a new methodology for causality analysis in inter-areas and inter-factors, and this enables us to

Adapting commercial equipments to military operations may be beneficial in many perspectives, i.e., low cost, reduced acquisition time, and technology advancement. On the other hand, there are many situations where it may be impractical to replace an entire military system with a commercial one. In these cases, it is necessary to replace some components of the military system with commercial substitutes. Technical review and feasibility study are essential for this switchover, and a reliability assessment is one of the most important issues. We propose the sensitivity measures related to the importance of a certain component in military system. The idea is that selecting the component with least sensitivity as a COTS (commercial-off-the-shelf) candidate will minimize the adverse effect on system reliability. A case study is presented in order to verify the feasibility of the idea.

The purpose of this study is to describe a systematic management approach for TOC(Total Ownership Cost). TOC includes all costs associated with the research, development, procurement, operation, and disposal of an individual weapon system over its life cycle. Lately, MND(Ministry of National Defense) has pushed ahead with an aggressive effort to introduce a system called TLCSM(Total Life Cycle System Management) to achieve effective performance and optimum readiness while reducing the TOC. TLCSM, as defined in US DOD policy, is the implementation, management, and oversight　by the designated Program Manager, of all activities associated with the acquisition,　development, production, fielding, sustainment, and disposal of a DOD weapon system across its life cycle. TOC is a core and strategic factor of TLCSM. On this study, we approach an optimized management of TOC to efficiently execute and reduce limited budget. A final goal of TOC Management is to reduce a life cycle cost and maximize capabilities that represent system readiness, availability, and logistics supportability. The proposed management method will be useful to introduce and apply successful TLCSM.

The purpose of this study is to show the causal relations between user-oriented performance indicators for the logistics support management and then to determine the rate to improve Logistics Support Performance by increasing Accurate Demand Estimate Degree(ADED). A system dynamics model is built, which well explains the dynamic characteristics of logistics support. Its validity is checked by the model structure test and the model behavior test of Vensim Professional 5.8a. The results of simulation analysis with 4 scenarios confirm a mechanism that the increment of ADED with the shortening of logistics support periods leads to the improvement of logistics support performance. It uses the sample data of repair spare parts of K1 Tank from 2005 to 2008.

The purpose of this paper is to examine the current status and facing problems of the ROK defense industry, and to suggest desirable plans for implementation of R&D and structural reformations. The ROK defense industry maintains the structure of system integrators focused on developing platforms for the Armed Forces, and Components & Parts Suppliers. Additionally, it maintains system-centered R&D and founding structure, rather focusing on technology development. Consequently, the ROK defense industry lacks of capabilities on advanced weapon systems and development of core technology. Therefore, reforms of R&D and the structure of the defense industry should be achieved. First, R&D strategy of domestic defense industry should be changed with more focus on network, system of systems, and the accumulation of technology, preparing for NCW(Network Centric Warfare). Second, in preparation for TLCSM(Total Life Cycle System Management) and PBL(Performance Based Logistics) there should be massive investment in establishing R&D in existing weapon systems and system of systems, along with TLCSM and PBL. Third, system of systems, and related technology demanded effective NCW operation regardless both of functions as ground, sea, and air, and of the type of forces as the Army, Navy and Air Force, should be developed and produced. Finally, a main system integrator should be developed which is able to conduct logistic-support on the whole. These four strategies for R&D and structural reformation are demanded measures for strengthening the international competitiveness of the ROK defense industry.

Korea had many chances to acquire the required defense technology and to manufacture components by offset program. The number of available offset items and its proportion have been increasing sinse the revision of the relevant regulations in 2009. To make full advantage of these changes, it is important to implement offset negotiations strategically. Many organizations are proactive to participate in the offset negotiation process. In this research, we analyze the offset negotiation process with two-level game theory and derive some influence factors as they may affect the negotiator's. Based on the results, we propose some negotiation strategies to help offset negotiators make progress it favorably. As the conclusion, we propose that a systematic definition of the offset negotiation process should consist of four stages: planning, implementation, mediation, and agreement.

In order to succeed in『Operational Control(OPCON) transfer』and『Military Reform Plan 2020』, the Republic of Korea military must enhance operational capability to prepare for the future war Ministry of National Defense(MND), Joint Chief of Staff(JCS), the Army, the Navy and the Air force plan to adopt ‘Wargame System’ in many national defense fields We can effectively manage defense-related programs, make rational decisions, reduce budget for exercises and training, and experience simulated wars by using the ‘Wargame system’ It is a very effective means that we can economically achieve the completion of national defense preparations limited resources(budget, personnel etc.). Since the adoption of the ‘Wargame System’ is one of the most urgent tasks we face. it is highly recommended to adopt the ‘Wargame System’ in various fields of the national armed forces.

In this study, two coordinate measurement algorithms are described, which are based on one of the multidimensional function optimization methods, so called downhill simplex. One is for calculating relative height of a building, and the other is for calculating the 3D coordinate of a point. We also verify the algorithms mathematically and validate the algorithms by experiments. Two different image pairs are used for the experiments, i.e., IKONOS and Quickbird images, which have been acquired in 2001, 2005, respectively. And the results are compared with the data from GPS survey to evaluate the accuracy. It is shown that the accuracies of the suggested algorithms are within the intrinsic error boundary of the IKONOS and Quickbird images, and they are same as the results obtained by using rigorous sensor model, i.e., differential equations. Further researches are required to apply this method for calculating coordinates from multiple images with heterogeneous sensor models.

There are various restrictions in the requirements of aircraft and instrument depending on their operational circumstances. Especially, strict vibration requirements are applied to aircrafts with high level of maneuvering. In this paper, new attachment was installed in the cockpit of a propeller aircraft which served a high level of maneuvering, and vibration influence caused by the new equipment was presented. Futhermore, the validity for design of the new equipment's supporting structures was verified by examining the vibration influence and by meeting the requirements. The finite element analysis is an important tool in evaluating the dynamic characteristics of aircraft before and after its modification. The dynamic characteristics analysis was performed in two stages. In the first stage, mode analysis was performed to identify the natural frequency of the supporting structure and to derive the dynamic change of the instrument panel by installing the supporting structure and new equipment. And in the second stage, random vibrations which spectrum specified in MIL-STD-810G was applied to the FE model of before and after modification is carried out.

The tracking trainer is an equipment for practicing every step of firing missile, targeting either a real target or a virtual target with the IR source in the field. The main components of the tracking trainer are the training missile round, dummy BCU, battery pack, and battery charger. The tracking practice missile is equipped with a controller instead of a warhead, and a propulsion and ejection motor. The launcher system for the tracking trainer is the same as the actual launcher system; the size, shape, electronic and mechanical interface are exactly the same as the actual equipment. This paper shows that the previously researched cooled type tracking missile has limitations in its tracking range and is inadequate for repeated practice, especially under unusual environments. This study suggests some improvements in the range of the cooled type tracking missile so that it could be used more repeatedly. The main configurations of Chiron consist of missiles in container, launcher system, tracking trainer, simulator, and mobile maintenance equipment. In this paper, we adopt an un-cooled type seeker for the tracking trainer so that it does not require nitrogen gas injection for operation. As the consequence, the system has become very cost effective. The controller which shows the status of tracking training is also designed to be integrated into the missile for more convenient operation.

In order to give enhancement to the protection performance of modern fighting armor vehicle, various kinds of reactive armor (RA) systems have been developed by leading defence product manufacturers. There have been strong domestic demands for additional protection measures against hostile anti-armor munitions. Thus, efforts have been given to investigation upon authentic reactive armor system especially for the Korean next generation main battle tank, K2 Black Panther. However, in order to reduce damages to the chasis upon explosion of RA, development of non-energetic and advanced reactive armor system has been focused. For instance, the United States and Israel have developed the Hybrid Reactive Armor to install onto the Bradley Infantry Fighting Vehicle. Also, there have been studies and investigations for Korean non-energetic reactive armor system recently. In this paper, the current status of next generation RA and its research activities has been reviewed and discussed to provide right direction of future research and development programs.