• 정보화사회
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• s.117
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• pp.8-10
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• 1997

근래, 일본에서는 Car navigation이나 측량등 GPS(Golbal Positioning System)가 확산되고 있으나, GPS는 미국의 군사 위성시스템으로 장차의 산업이용에 있어서는 불확실성이 있다. 그 내용을 알아본다.

• Journal of Korea Ship Safrty Technology Authority
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• s.24
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• pp.57-73
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• 2008

The United Kingdom proposed the development of the strategic vision for e-Navigation at MSC 81 held in 2006. As the development is under way, the concept has not been specified yet. Moreover, It has not come to agreement what information is important and treated in priority for e-Navigation. Korea has been studying it in the various points of view, but no achievement until now. This study looks into the development methods for e-Navigation in Korea through examining international movement and industrial situation as to e-Navigation.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• v.9 no.1
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• pp.1125-1129
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• 2005

In this study, for suggesting the development of GPS navigation in the naval vessels, the test of GPS error is conducted for analyzing the precision of GPS installed in the naval vessels. And the reliability and utilization of GPS are verified throughout interview and questionnaire with the workers in the naval vessels.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• v.2
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• pp.177-179
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• 2006

한국과 일본의 항로표지측정선을 이용한 항로표지의 측정 및 분석을 통한 전파표지 국제협력과 측정시스템 정도향상등 양국간의 통일된 측정방법의 필요성 및 상호간 측정자료 정보교환으로 항로표지분양의 국제 협력을 통한 해상교통안전을 도모하고자 함.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.35 no.1C
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• pp.130-137
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• 2010

An uplink indoor positioning system is proposed in the present work, where the acoustic signals are solely used for positioning. The underlying acoustic signals include whistle, finger snap, and hands-clapping. In the proposed method, positioning is achieved by finding the time-difference-of-arrivals using several self-generating sounds. To evaluate the feasibility of the signals and their positioning accuracies, the database of 100 persons about self-generating acoustic signals is built up. The results show that the hands-clapping sound is the most suitable for acoustic-based indoor positioning.

• KASI NEWSLETTER
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• s.49
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• pp.1-4
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• 2005

2005년 시무식/ 2006년도 월력요항 발표/ 이사장 방문 신년간담회 개최/ 제26차 경영협의회 개최/ 지역천문대 2005 상반기 관측일정 확정/ 양홍진 박사 논문, A&Ap 논문 표지그림으로 선정/ 2005년도 연.학 협력사업/ '05 동계교원연수/ 연구원 방문의 날 행사/ 청소년 혜성축제 개최/ 제13회 천체사진공모전 개최/ 우수인력확보 및 사기진작정책 시행/ 직원동정/ 학회소식/ 콜로키움/ 위성측위시스템의 과거, 현재 그리고 미래

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.34 no.10
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• pp.48-55
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• 2006

A multi-filter fusion technique is proposed and this technique is applied to the INS/GPS integrated system. IIR-type EKF and FIR-type RHKF filter are fused to provide the advantages of these filters based on the adaptive mixing probability calculated by the residuals and the residual covariance matrices of the filters. In the INS/GPS, this fusion filter can provide more robust navigation information than the conventional stand-alone filter.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.14 no.2
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• pp.141-150
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• 1996

A satellite positioning system has been recently introduced in Korea and the applications of the system are in-creasing gradually, and it is, therefore, interested in the geocentric coordinate system. In this paper, the requirements of the redefinition of the Korean geodetic system which is suited to the geocentric datum and the strategies for the establishment of new geodetic networks are considered. It is also taken into account to maintain the control points, in the transition from the old coordinate systems to a new coordinate system.

• Journal of the Korea Institute of Military Science and Technology
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• v.4 no.2
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• pp.52-59
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• 2001

In this paper, we have proposed a capability of applying Global Positioning System(GPS) to cannon laying. High precision GPS positioning can be used for measuring precise positions and angles. Therefore, we have tested on applying GPS positioning technique to measurement of positions and angles, which related to cannon laying. First of all, we have determined a GPS reference position using various positioning methods. Then we have carried out several tests that are process of taking corner angles between neighboring two vectors. Each vector can be calculated by post/real time positioning of two GPS antennas placed on the both ends of the howitzer. The Comer Angles from Post processing(CAP) are compared with the other Corner Angles from Real time positioning(CAR). As the results, we have an agreement between CAP and CAR within 0.25 mil average, 0.29 mil standard deviation. Finally, we have discussed about the capabilities and problems in artillery arrangement using GPS.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.19 no.3
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• pp.16-24
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• 2011

In this research, a cockpit display system using 3 dimensional geographic information was developed. A coordinate transformation method from WGS84 to TM was first studied. Octree data structure was used for efficient 2D and 3D graphic display. Also, a 3D graphic engine was developed for fast display with large amount of geographic data which can be practically used in aircraft onboard computer having low performance. This 3D engine contains additional function such as geographic and object information loading, many kinds of camera mode, aircraft position and rotation control function, character strip display. In the future research, actual GPS signal should be used and additional information that can help pilot's decision should be display.