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Spline보간과 GPS/Leveling기법에 의한 지적 표고 획득과 정확도 분석
최승영(Choi Seung Young),조정관(Cho Jung Gwan) 한국지적학회 2008 한국지적학회지 Vol.24 No.1
본 연구는 국토지리정보원에서 고시한 수준점 33점을 이용하여 다른 수준점을 미지점으로 하고 첫째 Spliine 보간기법을 이용해서 소구점의 정확도를 분석했으며, 또한 GPS/Leveling에 의한 타원체고와 정표고을 분석하여 소구점의 높이를 결정하였다. 그 결과 기존수치지형도에서의 높이와 수준점을 이용하여 보간한 높이에 차이가 생겼으며, 이는 기존 수치지형도상의 높이보다는 기존 수치지형도에 수준점을 활용하여 보간한 높이가 더 정확하다는 결론을 내었다. 또한 GPS/Leveling기법으로 타원체고와 정표고의 관계에서 지오이드값을 구했으며, 5개 수준점을 GPS로 관측하여 지오이드고값과 비교한 결과 상당히 양호한 결과가 나타났다. 따라서 이러한 결과를 토대로 지적도근점에 표고를 등재하여 3차원 지적과 건물등록시 효율적인 측량방법을 제시 하였다. This study is to analyse the accuracy and height of new control points by Spline Interpolation and GPS Leveling respectively. The 33 bench marks announced by National Geographic Information Institute were used for this study. Regarding GPS Leveling it was done after ellipsoidal height and orthometric height had been analysed. In consequence, there was a elevation gap between the height in the digital topographic map and the interpolated height used by bench marks enabling it to come to an conclusion that the interpolated height is more accurate than the height in the digital topographic map. Moreover, the Geoidal height was acquired by comparing between GPS Leveling and GPS surveying of 5 bench marks. Therefore, the elevation values on cadastral traverse points were recorded to suggest an effective surveying method in case that 3D cadastre and building register could be come into effect in the near future.
최승영 ( Choi Seung Yeong ) 한국부동산학회 2003 不動産學報 Vol.20 No.-
1. CONTENTS (1) RESEARCH OBJECTIVES Modernistic real-estate registration system has worked about a century in Korea, but it was no match for the ideal of safety and promptitude of transactions in realty, Especially, a matter of consequence is that our country doesn’t authorize public confidence of registration. In this study, I’ll check the problems of registration system compared with that of foreign countries and investigate general theories. Besides, I will also check the improvement and aim to search for the alternatives that can be genuine real-estate registration. ⑵ RESEARCH METHOD This study is based on a literature analysis, data from internet site, and an interview with the registry officials. (3) RESEARCH RESULTS In order to solve those problems, the study suggests the systematic amend in the registration related laws, after resurvey of cadastral lands, the unification of the varied register books and cadastral records and enforces the authentication system of registration cause certificate. In addition, it is necessary to improve public confidence of registration, the upgrade and specialization of its officials and computerization of the registry tasks, improve the registry proxy application system. 2. RESULT In conclusion, it is desirable to seek the safety of transaction and recognize public confidence of registration on a condition that system is improved.
최승영(Choi, Seung Young) 한국지적학회 2014 한국지적학회지 Vol.30 No.1
The purpose of this study is to analyze the appropriacy of the actual trade prices(ATP) by investigating and comparing the difference between the publicly notified individual land prices(PNILP) and actual trade prices(ATP) in urban area, rural area, and island. According to the survey result of the average realization rate of PNILP in Mokpo which is urban, Muan which is rural, and Shinan which is island for the recent 3 years, the percentages were 95.0%, 69.0%, and 50.6% respectively. PNILP was close to ATP in Mokpo; however, PNILP was not close to ATP in Muan, being higher than 59.9% which was national level in 2012. When it comes to Shinan, the level was lower than the national level. In other words, PNILP accounted for approximately half of ATP(50~60%) in Muan and Shinan, which means that there is limitation to justify PNILP as an appropriate price in urban and rural area. 본 연구는 도시지역과 농촌지역, 도서지역을 대상으로 공시지가와 실거래가격의 차이를 실증적으로 조사ㆍ비교하여 공시지가의 적정성을 분석하고자 하였다. 전남 서남권 지역 중 도시지역인 목포시와 농촌지역인 무안군, 도서지역인 신안군의 최근 3년간의 개별공시지가의 평균 현실화율을 살펴본 결과, 목포시 95.0%, 무안군 69.0%, 신안군 50.6%로 나타났다. 도시지역인 목포시는 실거래가격에 근접한 수준이었으며, 농촌지역인 무안군은 실거래가격에 근접하지는 못하였지만 2012년 기준 전국 수준인 59.9%보다는 높게 나타났다. 반면, 도서지역인 신안군은 전국 수준보다 낮게 형성되고 있다. 이처럼, 무안군과 신안군의 실거래가격의 50~60% 선에서 형성되어 있다는 점은 농촌지역과 도서지역에서의 적정가격으로서의 공시지가의 당위성을 주장하기에는 한계가 있다는 것을 의미한다.