• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2002.05a
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• pp.197-200
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• 2002

The current Inn technique is many problems that is permission of radio station using RF Wireless Modem, that is influence of geographic obstacle using radio wave, that is frequency interference, that is finiteness of frequency resources. In this paper, we are solved many elements, IM replaces RF Wireless Modem, we suggest transmission technique of correction message using mobile phone, we researched Interface Module development which is linkage of DGPS receiver and mobile phone. IM can transmit correction message passing RS-232 port and modem communication control. IM of base station is initialized RS-232 port and modem to move station for correction message transmission, IM waited response mode. IM of move station is initialized RS-232 port and modem, IM requests hand shaking to base station, completed connection establishment. Users are worked Differential surveying using receiving correction message between mobile phones.

• Journal of Navigation and Port Research
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• v.38 no.4
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• pp.373-378
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• 2014

In order to prepare for recapitalization of differential GNSS (DGNSS) reference station and integrity monitor (RSIM) due to GNSS diversification, this paper focuses on differential correction algorithm using GPS/Galileo pesudorange. The technical standards on operation and broadcast of DGNSS RSIM are described as operation of differential GPS (DGPS) RSIM for conversion of DGNSS RSIM. Usually, in order to get the differential corrections of GNSS pesudorange, the system must know the real positions of satellites and user. Therefore, for calculating the position of Galileo satellites correctly, using the equation for calculating the SV position in Galileo ICD (Interface Control Document), it estimates the SV position based on Ephemeris data obtained from user receiver, and calculates the clock offset of satellite and user receiver, system time offset between GPS and Galileo, then determines the pseudorange corrections of GPS/Galileo. Based on a platform for performance verification connected with GPS/Galileo integrated signal simulator, it compared the PRC (pseudorange correction) errors of GPS and Galileo, analyzed the position errors of DGPS, DGalileo, and DGPS/DGalileo respectively. The proposed method was evaluated according to PRC errors and position accuracy at the simulation platform. When using the DGPS/DGalileo corrections, this paper could confirm that the results met the performance requirements of the RTCM.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.10
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• pp.2307-2314
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• 2015

This paper focuses on the generation algorithm of BeiDou pseudorange correction (PRC) and simulation based performance verification for design of Differential Global Navigation Satellite System (DGNSS) reference station and integrity monitor (RSIM) in order to prepare for recapitalization of DGNSS. First of all, it discusses the International standard on DGNSS RSIM, based on the interface control document (ICD) for BeiDou, estimates the satellite position using satellite clock offset and user receiver clock offset, and the system time offset between Global Positioning System (GPS) and BeiDou. Using the performance verification platform interfaced with GNSS (GPS/BeiDou) simulator, it calculates the BeiDou pseudorange corrections , compares the results of position accuracy with GPS/DGPS. As the test results, this paper verified to meet the performance of position accuracy for DGNSS RSIM operation required on Radio Technical Commission for Maritime Services (RTCM) standard.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2014.10a
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• pp.277-279
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• 2014

TEQC는 인공위성으로부터 수신한 데이터를 편집, 품질검사, 포맷변환하기 위한 소프트웨어이다. TEQC 품질검사를 사용하면 여러 결과파일이 생성되는데 이를 활용하여 DGPS기준국 전파수신 환경을 분석하였다. 특히 방위각, 앙각에 따른 장애물의 여부를 가능하다.

• 주택과사람들
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• no.57 s.74
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• pp.23-28
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• 1996

이 자료는 ''96. 6. 8. 주택건설기준등에 관한 규정의 개정과 관련하여 일선행정기관이 사업계획승인업무 및 주택관련 행정을 수행함에 있어 규정개정의 배경과 그 구체적인 내용을 미리 파악하여 제도개선의 효과를 충분히 발휘할 수 있도록 함과 아울러 개정규정을 합리적으로 운영하여 관련민원을 최소화하기 위하여 건설교통부 주택도시국 주택관리과에서 만든 자료입니다.

• Magazine of korean Tunnelling and Underground Space Association
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• v.21 no.4
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• pp.52-65
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• 2019

• 월간산업보건
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• s.20
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• pp.48-52
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• 1989

• The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.16 no.2
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• pp.3-13
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• 2002

• Journal of the Korean Institute of Educational Facilities
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• v.18 no.5
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• pp.30-32
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• 2011

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.43 no.3
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• pp.28-35
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• 2014