• 제어로봇시스템학회논문지
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• 제9권3호
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• pp.242-250
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• 2003

We propose the monitoring system scheme for the CPS/INS integrated navigation system. The design requirements of the monitoring system are suggested and the software scheme based on GUI is proposed. The proposed monitoring system consists of an I/O interface part, a navigation data display part, and a post-processing part. The I/O interface part is responsible for data communication between the monitoring system and a navigation computer unit. The navigation data display part provides various display methods to show the navigation data to user in real-time. The post-processing part collects the navigation data to analyze the performance of navigation system. The proposed monitoring system software was developed using the Visual C++ programming language and a van test was carried out to demonstrate the real-time operation of the monitoring system. The test result shows that the proposed monitoring system can be effectively applied to the CPS/INS integrated navigation system.

• 펄프종이기술
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• 제44권6호
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• pp.79-86
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• 2012

The aim of this general remarks is to introduce the results concerning the thermo physical, charging, developing and fusing characteristics of micro-encapsulated (MC) model toners in order to apply to the toner of electrophotographic system at the condition of a low temperature. In order to clarify the fusing mechanism of MC toner, rheological analysis of the toner was chosen. It was suggested that MC toner had a different fusing mechanism compared with non-MC toner. Some kinds of MC model toners showed a good result on adhesion test as well as cohesion test. Also, it was possible to get the good charging and development characteristic of MC toner for printing test with laser printer.

• 한국군사과학기술학회지
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• 제13권6호
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• pp.1019-1025
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• 2010

This paper describes on methods in test and evaluation of the guided rocket munitions of the domestic new generation multiple launcher rocket system. We modified and refer to the present model of air-to-air missile(AAM) and surface-to-air missile(SAM). Also we suggested a method of surface-to-surface missile(SSM) based on the characteristics of the guided rocket in test and evaluation(T&E). According to this study, the suggested activity of T&E should be observed methods compatible with each item on the established model. Therefore, we expect that the proposed research material will be a good guide to the study of a surface-to-surface missile(SSM) installed GPS/INS integration navigation guidance & control systems in the future.

• 한국지리정보학회지
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• 제17권1호
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• pp.13-23
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• 2014

우리나라는 그간 화산 재해로부터 안전한 지역으로 알려졌다. 그러나, 최근 백두산의 화산 분화 전조현상 들이 자주 보고되고 있으며, 이에 따라 한반도의 화산 분화를 경고하는 화산 전문가들이 늘어나고 있는 실정이다. 본 논문은 백두산 화산 재해 대응 시스템의 개발방안을 기술하고 있다. 첫 번째로 소방방재청의 방재업무 체계와 관련 시스템을 분석한다. 두 번째로, 방재업무체계를 기반으로 화산 재해 대응 업무 프로세스를 도출한다. 세 번째로, 관련 재난 대응 시스템을 참고하여 화산재해 대응시스템의 시스템 아키텍처를 설계하고 필요 공간정보를 도출한다. 마지막으로, 본 논문에서 제안한 화산재해 대응시스템을 테스트하기 위하여 파일럿 시스템을 개발한다. 제안된 화산재해 대응시스템이 실제로 소방방재청에 탑재되기까지는 추가적인 검증 및 시스템 보완이 필요할 것이다. 본 연구를 기반으로 한 완성된 화산재해 대응 시스템은 우리나라와, 중국, 일본의 화산재해로 인한 피해를 최소화 할 것으로 기대된다.

• 한국항공우주학회지
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• 제36권5호
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• pp.507-513
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• 2008

본 논문에서는 비행운용프로그램 검증 및 항공전자 장비 고장탐구에 사용되는 항공전자시스템 통합시험장비(Avionics Hot Bench) 개발에 대한 내용을 기술하였다. 산업분야에서 전통적 AHB는 자사 보유 소프트웨어 및 신뢰성 있는 하드웨어를 오랜 기간 통합하여 개발되며 기술이전에는 일반적으로 큰 비용이 요구된다. 개발 기간과 비용을 절감하기위해 다수의 기성개발품을 활용하였으며, 개방형 시스템 구조를 적용하여 실제 항공전자 시스템 개발에 사용될 수 있는 AHB를 개발하였다. 검증절차서에 입각하여 T-50 항공전자 시스템 개발에 사용된 기 입증된 AHB의 테스트 결과와 개발된 AHB의 테스트 결과를 엄밀히 비교하였으며 만족스러운 비교 결과를 얻을 수 있었다.

• 한국군사과학기술학회지
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• 제25권2호
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• pp.160-168
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• 2022

The new IFF mode, Mode-5 replacing Mode-4, has already been established by the US DoD for its allies and NATO forces. A IFF retrofit program for replacing the Mark XII Mode-4 with Mark XIIA Mode-5 is in progress in order to overcome the security limitations of the former in R.O.K. IFF certification test for the new mode, Mode-5, has been performed on medium range surface to air missile platform of the Korean armed forces for the first time in R.O.K and this is regarded as a monumental event in Korean defense industry. The present paper is a discussion on the procedures applied to the IFF system retrofit and integration, lessons learned from AIMS test with the US AIMS PO as observer. The minimum modification from the existing Mark XII Mode-4 to Mark XIIA Mode-5 and evolutional adaption from previous design including interoperability are required for the system retrofit. Letter of Certification was received from the US AIMS PO after the tests. The authors propose that the lessons learned and know-how acquired during the tests are managed by the R.O.K Government as the standard structure of a database. It is expected that the use of the database will reduce the developmental difficulties and risk, also increase efficiency in future developments and other projects.

• ETRI Journal
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• 제27권2호
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• pp.140-152
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• 2005

In this paper, we present design features, implementation, and validation of a satellite simulator subsystem for the Korea Multi-Purpose Satellite-2 (KOMPSAT-2). The satellite simulator subsystem is implemented on a personal computer to minimize costs and trouble on embedding onboard flight software into the simulator. An object-oriented design methodology is employed to maximize software reusability. Also, instead of a high-cost commercial database, XML is used for the manipulation of spacecraft characteristics data, telecommand, telemetry, and simulation data. The KOMPSAT-2 satellite simulator subsystem is validated by various simulations for autonomous onboard launch and early orbit phase operations, anomaly operation, and science fine mode operation. It is also officially verified by successfully passing various tests such as the satellite simulator subsystem test, mission control element system integration test, interface test, site installation test, and acceptance test.

• International Journal of Aeronautical and Space Sciences
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• 제10권1호
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• pp.75-82
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• 2009

In this parer, we propose a new way of improving DGNSS service using combination of multiple SBAS information. Because SBAS uses Geostationary Earth Orbit (GEO) satellites, it has very large coverage but it can be unavailable in urban canyon because of visibility problem. R. Chen solved this problem by creating Virtual Reference Stations (VRS) using the SBAS signal [1]. VRS converts SBAS signal to RTCM signals corresponding its location, and broadcast the converted RTCM signals over the wireless internet. This method can solve the visibility problem cost effectively. Furthermore it can solve DGNSS coverage problem by creating just a transmitter instead of a reference station. Developing above method, this paper proposes the methods that integrate two or more SEAS signals into one RTCM signal and broadcast it. In Korea, MSAS signal is available even though it is not officially certified for Korean users. As a Korean own SBAS-like system, there is the internet-based KWTB (Korean WADGPS Test Bed) which we developed and released at ION GNSS 2006. As a result, virtually two different SBAS corrections are available in Korea. In this paper, we propose the integration methods for these two independent SBAS corrections and present the test results using the actual measurements from the two systems. We present the detailed algorithm for these two methods and analyze the features and performances of them. To verify the proposed methods, we conduct the experiment using the logged SBAS corrections from the two systems and the RINEX data logged at Dokdo monitoring station in Korea. The preliminary test results showed the improved performance compared to the results from two independent systems, which shows the potential of our proposed methods. In the future, the newly developed SBASs will be available and the places which can access the multiple SBAS signals will increase. At that time, the integration or combination methods of two or more SBASs will become more important. Our proposed methods can be one of the useful solutions for that. As an additional research, we need to extend this research to the system level integration such as the concept of the decentralized W ADGPS.

• 위성통신과 우주산업
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• 제12권1호통권27호
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• pp.122-128
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• 2004

• 한국시뮬레이션학회논문지
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• 제26권1호
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• pp.1-11
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• 2017

지난 수년 동안 한국군은 실제전장과 같은 엘브이시(LVC) 합성전장환경 구축을 위해 노력해 왔다. 그러한 노력에도 불구하고 성과가 극히 미미한 상태이다. 이는 주로 작전요구 및 운용개념의 결여와 아키텍처와 기반기술에 대한 정책과 체계적 접근이 미흡한데 기인한다. 더욱이 엘브이시(LVC) 기본개념과 원칙에 대한 충분한 이해 부족과 더불어 기관 간에 이해가 상충함에 기인한다. 본 연구에서 저자는 작전운용 관점보다 시스템 관점과 기술표준 관점에서 에치엘에이(HLA) 아키텍처에 기반하여 엘브이시(LVC)를 구축할 것을 제안하고 있다. 한국군이 엘브이시(LVC) 구축을 위한 접근방법으로 우선 정보중심의 통합방법을 적용하고, 아키텍처 수렴노력의 일환으로 에치엘에이/알티아이(HLA/RTI)를 기반으로 구축하며, 에치엘에이(HLA) 인증시험과 페더레이션 연동시험을 강화하고, 국제표준인 디십(DSEEP), 디마오(DMAO) 및 피트(FEAT)를 도입 적용하며, 마지막으로 에브이시(LVC) 적합성 인증시험체계를 구축하여 적용할 것을 제안하였다.