• 한국측량학회:학술대회논문집
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• 한국측량학회 2004년도 춘계학술발표회논문집
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• pp.519-520
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• 2004

Using the baseline vectors obtained by GPS observations on 32 triangulation points over Gyunggido area, Bessel coordinates of the corresponding points are calculated according to trilateration adjustment. The result shows the possibility of construction of a new cadastral survey network with the degree of correctness of 5cm, when newly computing the coordinates of the survey datum point of the area with values from GPS baseline vectors.

• 한국측량학회:학술대회논문집
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• 한국측량학회 2004년도 춘계학술발표회논문집
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• pp.125-130
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• 2004

As an application of GPS is increased by world geodetic system introduction gradually, in this time, It is increased necessary of GPS baseline analysis program development. In this study, I developed a baseline analysis program by L1/L2 carrier. And I compared a baseline analysis result with a commercial program. I showed precision of approximately ${\pm}$1cm in a baseline length in case of Narrow lane as a result that a baseline analysised a developed program.

• 한국측량학회:학술대회논문집
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• 한국측량학회 2004년도 춘계학술발표회논문집
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• pp.119-124
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• 2004

Tracking correct position information is essential for rescue active in the case of wreck accidents, abscondence and kid napping. Position information system Using GPS and PDA can trace holder's positions exactly and fast, the system can minimize a loss of lives in emergency circumstance. In this study, it is aimed to develop a chasing system to position holders rapidly during distress situation.

• 한국측량학회:학술대회논문집
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• 한국측량학회 2004년도 춘계학술발표회논문집
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• pp.107-112
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• 2004

Corresponding to the importance of real-time position tracing in the customs free zone, the logistics monitoring system utilizing GPS and PDA correctly confirms the position of the logistics at real time. Information obtained through the use of bluetooth is transmitted into the control station that controls the flow of the logistics. This logistics monitoring system can efficiently identify the movement of the logistics all the time.

• 한국측량학회:학술대회논문집
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• 한국측량학회 2004년도 춘계학술발표회논문집
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• pp.97-102
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• 2004

현재 4차원 정밀측정이 가능한 GPS는 데이터 처리와 사용기기 면에서 많은 발전을 이루고 있으며, 정밀한 데이터 결과를 제공하고 있다. 처리 방식에 따른 기선거리별 한계치에 대한 재검증을 실시하고자 하였으며, 측지용 GPS 수신기를 이용한 기선측정에 있어, L$_1$주파수 수신 GPS 시스템의 유효측정거리에 대하여 논하였다. 또한 일반적인 기선처리방식 이외의 다양한 처리기법들을 적용하여 각 단ㆍ중ㆍ장기선에 대해 가장 알맞은 처리방식을 도출하려고 하였으며 결과를 도출하는 과정에서 GPS 상대거리 관측데이터에 대해 양호한 데이터를 선별할 수 있는 기준 안을 마련하고자 하였다.

• 한국측량학회:학술대회논문집
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• 한국측량학회 2004년도 춘계학술발표회논문집
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• pp.57-57
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• 2004

This study analyzed and compared the results of baseline processing using Epoch-By-Epoch algorithm which is not required initialization compared to conventional kinematic surveying which is required initialization There are rarely differences between 24 hours data of 30 seconds interval and 90 seconds of 30 seconds when it is processed with 26km baseline. This helps with economic surveying using data of GPS CORS

• 한국측량학회:학술대회논문집
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• 한국측량학회 2004년도 춘계학술발표회논문집
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• pp.45-49
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• 2004

The Navstar Global Positioning System(GPS) is an advanced navigation satelite system for determination of position, velocity and time. It can provide three-dimensional positioning on a global basis, independent of weather, 24 hours per day. Test results show that the carrier phase and pseudorange corrections are suitable for a kinematic GPS system. Using these corrections are more effective than using raw GPS data, since fewer bits are required for transmission Additionally, the number of computation required at the rover is reduced when corrections, rather than raw measurement are transmitted

• 한국측량학회:학술대회논문집
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• 한국측량학회 2004년도 춘계학술발표회논문집
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• pp.27-31
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• 2004

지방자치화가 본격화되었지만 우리나라에는 해상경계를 명확히 규정한 법이 없어 지방자치단체간의 해상경계분쟁에 대한 대책이 미흡한 실정이다. 더욱이 지자체가 해역에 대한 권리를 가지는가와 기존 지형도상의 해상경계가 효력이 있는가에 대한 견해도 일치하지 않는 상황이다. 이에 지자체간 갈등의 심화, 주민의 대립 등 분쟁에 따른 피해가 야기되고 있어 해양수산부는 해상경계를 설정하여 문제를 해결할 필요가 있다.

• 한국측량학회:학술대회논문집
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• 한국측량학회 2004년도 춘계학술발표회논문집
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• pp.375-382
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• 2004

Lately, 3D GIS begins to be widely used in many application fields. In this research, we proposed a survey and analysis result of research trends for 3D GIS technologies-acquisition of 3D spatial data, 3D features structuring, 3D visualization, data query, and transmission etc. The result is expected to give the helpful information for constructing research road-map on development of 3D GIS technologies.

• 한국측량학회:학술대회논문집
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• 한국측량학회 2004년도 춘계학술발표회논문집
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• pp.303-308
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• 2004

The acquisition of many control points for SAR data processing is very difficult and time_consuming steps. For resolving the problem about control points, this paper describes satellite orbit refinement method using minimum control point. Accuracy of geocoding according to distribution and number of control points are analyzed and geocoded RADARSAT image was produced in the paper.