• Current Optics and Photonics
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• 제3권5호
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• pp.429-437
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• 2019

Temperature adaptability is an important metric for evaluating the performance of an optical system. The temperature characteristics of the optical system are closely related to the material and shape of its lens. In this paper, we establish a mathematical model relating the temperature characteristics to the shape and material of the lens. Then a novel assembly structure that can solve the lens constraint and positioning problem is proposed. From those basics, the correctness of the theoretical model and the effectiveness of the assembly structure are verified through simulated analysis of the imaging quality of the optical system, whose operating temperature range is $-60{\sim}100^{\circ}C$.

• 한국국방경영분석학회지
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• 제31권1호
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• pp.73-92
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• 2005

The SCOR(supply chain operations reference) model which is a management tool, has been developed to describe the business activities associated with all phases of satisfying a customer's demand. The model is able to successfully describe and provide a basis for supply chain improvement. In this paper, we review the SCOR model, the present status of the Korean defense logistics system, and suggest an application of the model for the integrated defense logistics system.

• 한국군사과학기술학회지
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• 제18권3호
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• pp.326-334
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• 2015

This paper describes the verification and the validation about the development of the integrated interoperability system for live, virtual, and constructive simulations on the aircraft weapon system. The proposed integrated interoperability system provides the framework and application softwares for implementing a synthetic environment emulating real-world environment among distributed simulation models, which are a mission model and an air combat model of a constructive level, an tactical simulator of a virtual level, and simulated ACMI of a live level. In this paper, we verify requested functions through an developmental test and evaluation, and validate operability and usability through conducing integrated LVC scenarios on the integrated interoperability system.

• 인터넷정보학회논문지
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• 제21권2호
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• pp.131-138
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• 2020

무기체계 소요제기부터 연구개발, 시험평가, 운영유지까지 국방 무기체계 획득 전 과정에서 활용하고 있는 국방M&S(Modeling & Simulation)정보를 과학적이고 체계적으로 관리하기 위해 SBA(Simulation Based Acquisition)통합정보체계가 구축·운영되고 있다. 국방 무기체계 획득 전 수명주기에 M&S자원을 적극적이고 효과적으로 활용하기 위해서는 SBA통합정보체계의 효율적인 운영방안이 필요하다. 이를 위해 SBA통합정보체계의 이용현황을 식별하고 운영성과측정을 수행한 결과, M&S자원 활성화와 획득업무 지원을 위해서는 SBA통합정보체계 운영 절차 수립과 더불어 세부적인 제도 마련이 필수적인 것으로 판단하였다. 본 논문에서는 SBA통합정보체계의 효율적인 운영을 위해 국방 M&S 정보관리 현황을 분석하고 국방 M&S 활성화와 체계적인 운영을 위한 정보체계의 개선방안을 제시한다.

• 정보처리학회논문지B
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• 제18B권5호
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• pp.295-304
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• 2011

국방 분야의 연구정보들을 효과적으로 관리하기 위해서는 국방연구정보에 관한 메타데이터가 체계적으로 관리되어야 하며, 이를 기반으로 국방연구정보의 융합과 관리를 돕는 통합시스템이 구축되어야 한다. 이와 함께, 모바일 장비를 이용한 검색이 증가하고 있는 추세이므로 사용자들에게는 모바일 환경에서의 효과적인 통합 검색 서비스가 제공되어야 한다. 본 논문에서는 국방연구정보를 활용한 모바일 시맨틱 통합검색 시스템을 제안하고자 한다. 이를 위해, 더블린코어의 메타데이터와 주요 국방 관련 연구기관의 데이터베이스 정보를 분석하여 국방연구 온톨로지와 국방연구 규칙을 정의하였고, 정의된 온톨로지와 규칙이 국방연구정보의 시맨틱 통합검색에 활용되는 것을 보이기 위해 모바일 시맨틱 통합검색 시스템의 프로토타입을 구현하였다. 또한 모바일 환경에서의 시맨틱 통합검색을 지원하기 위한 트리플 기반 검색 서비스와 향후 활용 가능한 모바일 시맨틱 통합검색 서비스들을 제시하였다.

• 정보보호학회논문지
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• 제21권4호
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• pp.39-46
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• 2011

본 논문은 다양한 네트워크 보안장비들이 갖는 고유의 보안정책들을 하나의 시스템 내에 단일 알고리즘으로 구현함으로써 네트워크를 기반으로 하는 공격 발생 시 최적의 통합 보안정책에 대한 연구이다. 실험을 위한 정책들은 Firewall, VPN(Virtual Private Network), IDS(Intrusion Detection System), IPS(Intrusion Prevention System)가 갖는 고유의 방어정책을 상호 조합하는 과정을 통해 최적의 보안 시스템을 구현하기 위한 실험을 한다. 또한, 보안정책 설정에 따른 시스템 부하와 빠른 탐지, 신속하고 효율적인 방어를 위한 통합 메커니즘 설계 및 네트워크 인프라 구현 기반을 확보하는데 의의가 있다.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2006년도 International Symposium on GPS/GNSS Vol.1
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• pp.491-494
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• 2006

Kalman filtering (KF) is hard to be applied to the SINS (Strap-down Inertial Navigation System)/RDSS (Radio Determination Satellite Service) integrated navigation system directly because the time delay of RDSS positioning in active mode is random. BP (Back-Propagation) Neuron computing as a powerful technology of Artificial Neural Network (ANN), is appropriate to solve nonlinear problems such as the random time delay of RDSS without prior knowledge about the mathematical process involved. The new algorithm betakes a BP neural network (BPNN) and velocity feedback to aid KF in order to overcome the time delay of RDSS positioning. Once the BP neural network was trained and converged, the new approach will work well for SINS/RDSS integrated navigation. Dynamic vehicle experiments were performed to evaluate the performance of the system. The experiment results demonstrate that the horizontal positioning accuracy of the new approach is 40.62 m (1 ${\sigma}$), which is better than velocity-feedback-based KF. The experimental results also show that the horizontal positioning error of the navigation system is almost linear to the positioning interval of RDSS within 5 minutes. The approach and its anti-jamming analysis will be helpful to the applications of SINS/RDSS integrated systems.

• 시스템엔지니어링학술지
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• 제15권2호
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• pp.98-107
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• 2019

The defense system development process is a process of developing various systems that perform functions in various functional areas such as battlefield awareness, command control, force application, and logistical support. In other words, the defense system development process is a process of developing many systems simultaneously in various functional areas. Various systems developed through this process should be interoperable so that they can be integrated and operated in a joint warfighting environment. To successfully implement this, the US Department of Defense uses the Joint Capability Integrated Development System(JCIDS) for the defense system development, and within this JCIDS processes the Capability Based Assessment(CBA) methodology as its core technology. This CBA methodology transforms the mission activity requirements to functional capability requirements logically and transforms the functional capability requirements to system requirements logically also. Smart City is a city that improves the convenience and quality of life of the citizen by integrates various systems that perform various functions of the city and smarties various functional systems with smart services by using IT technology. In other words, defense system development and smart city development have a common feature of the process of developing many systems simultaneously in various functional areas. In order to address the problem of having to develop many systems simultaneously in each functional area, it is important to logically transform the various mission scenarios into functions and logically transform the functions into systems. Therefore, a joint capability integrated development system and its core methodology, Capability Based Assessment(CBA), can be applied to smart city development. This paper proposes a method for performing a smart city concept design method using the capability based evaluation (CBA) method.

• 품질경영학회지
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• 제51권1호
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• pp.131-154
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• 2023

Purpose: The purpose of this paper is to design an integrated informatization system that can manage quality & KPI by integrating management systems in the aerospace and defense industry, and study the effect on KPI when applied to related companies. Methods: The 7 management systems required for integration in the AS&D industry were studied, and an empirical analysis was conducted for H company in South Korea for the application of e-QMS integrated informatization & KPI system based on security environment and open quality. Results: The results of this study were analyzed to have an effect on the improvement of customer satisfaction and the positive improvement of quality failure cost in the aerospace and defense industry. And it was analyzed that it works to continuously comply with ethical management and environmental laws and prevent safety accidents. Conclusion: The greatest significance of this study is that it attempted to build an e-QMS integrated system in the aerospace and defense industry. Considering that the case of integrated management system and integrated operation of KPI in related industries has not been introduced in the existing literature, the results of this study will be shared as a meaningful preceding study in the era of digital quality information. In addition, the fact that the open-quality quality innovation methodology emphasizing measurement(M), tracking(T), and connection(C) was actually applied in an AS&D company and its effectiveness was objectively proven. It is expected that it will be a good paper for follow-up research.

• 정보보호학회논문지
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• 제22권3호
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• pp.575-584
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• 2012

군의 정보화, 과학화 추진에 따른 환경 변화에 따라 기존 수작업, 오프라인 중심의 제반 군사보안 업무도 효율적이고 체계적인 업무 수행을 지원할 수 있도록 변화와 발전이 필요하다. 이에 본 연구에서는 주요 군사보안 업무 분야에 대한 실태 및 문제점 분석과 미국, 영국 등의 사례 분석을 기반으로, 주요 군사보안 업무를 자동화, 정보화하기 위한 국방통합보안시스템 구축 표준 Model을 제시하였다. 표준 Model은 통합보안체계, 비밀관리시스템, 인원출입 시스템, 차량출입시스템, 첨단경계시스템, 테러 예방시스템 및 보안사고분석시스템 등의 단위 시스템으로 구성되며, 현재 가용한 기술 및 시스템을 기반으로 제안하였는데, 이를 각급부대에 적용할 경우 군사보안 발전에 기여할 것으로 기대된다.