写真測量とリモートセンシング
Online ISSN : 1883-9061
Print ISSN : 0285-5844
ISSN-L : 0285-5844
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52 巻, 4 号
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小特集「GNSS 測位技術の動向」
  • 小特集にあたって
    政春 尋志
    2013 年 52 巻 4 号 p. 158
    発行日: 2013/09/09
    公開日: 2014/09/01
    DOIhttps://doi.org/10.4287/jsprs.52.158
    ジャーナル フリー
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  • ５. GNSS解析ソフトウェアのマルチGNSS対応
    古屋 智秋, 酒井 和紀, 万所 求, 辻 宏道, 宮川 康平, 畑中 雄樹, 宗包 浩志, 川元 智司
    2013 年 52 巻 4 号 p. 159-164
    発行日: 2013/09/09
    公開日: 2014/09/01
    DOIhttps://doi.org/10.4287/jsprs.52.159
    ジャーナル フリー
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    Although multiple GNSS constellations such as GPS, GLONASS, and Galileo are now being realized, there are few analysis software for precise surveying that can handle multi-GNSS data including Japanese Quasi Zenith Satellite System (QZSS). The Geospatial Information Authority of Japan (GSI) launched a 4-year project from 2011 to develop and standardize a precise positioning technique that can fully utilize the potential of multi-GNSS data including QZSS for surveys in urban canyons or rapid detection of crustal deformation after large earthquakes. After a brief review of general GNSS software packages, this paper focuses on the status and findings of GSI's multi-GNSS project.
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  • ６. マルチGNSS対応受信機の動向
    一般社団法人日本測量機器工業会GPS部門会
    2013 年 52 巻 4 号 p. 165-171
    発行日: 2013/09/09
    公開日: 2014/09/01
    DOIhttps://doi.org/10.4287/jsprs.52.165
    ジャーナル フリー
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    In the past time, “GPS” was the only one available satellite system for the global positioning. During the last decade, “GNSS” has become popular as a general term of satellite based global positioning system which includes GPS and other satellite systems such as GLONASS of Russia. Recently, as deployment plans, such as QZSS (=Quasi-Zenith Satellite System) of Japan, Chinese BeiDou, Galileo of EU, and IRNSS of India, progressed steadily and two or more global positioning systems can be used simultaneously, the multi-GNSS environment became realistic. This report expounds the effect of multi-GNSS and the latest information relating to the multi-GNSS receivers, especially the surveying instruments for which the positioning results of cm order are required.
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  • ７. 情報化施工へのマルチGNSSの利用
    佐田 達典
    2013 年 52 巻 4 号 p. 172-175
    発行日: 2013/09/09
    公開日: 2014/09/01
    DOIhttps://doi.org/10.4287/jsprs.52.172
    ジャーナル フリー
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    The real time kinematic positioning (RTK) capability by satellite-based positioning system has been one of the main technology for the information integrated construction including construction survey, machine guidance, machine control and compaction quality control. The Ministry of Land, Infrastructure, Transport and Tourism has promoted the strategic plan for information integrated construction since 2008. With the advent of multi GNSS environment, the availability of RTK has improved under severe conditions such as urban canyon with buildings, wooded valley, and the information integrated construction by RTK has spread for several years. However, there remain some problems ; the accuracy of height by RTK does not satisfy the requirement level of road construction, it is difficult to obtain RTK fix solutions under multipath condition. Quasi Zenith Satellite System (QZSS) and other technical development are expected to contribute to solve the problems.
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小特集「A-Train衛星コンステレーションと「しずく」（GCOM-W1）」
研究速報
  • 航空LiDARデータとグラフ理論を用いた森林作業道線形の設計に関する研究
    洲濱 智幸
    2013 年 52 巻 4 号 p. 194-199
    発行日: 2013/09/09
    公開日: 2014/09/01
    DOIhttps://doi.org/10.4287/jsprs.52.194
    ジャーナル フリー
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    The forest road network, which has arranged the path through the forested area appropriately, is required for the suitable management of the forest resources to raise the productivity of the forestry. Especially the efficiency of the tree logging work using the forwarder is related to the connectivity of the strip road between the logging area and the main forest network. Therefore, appropriate designing of strip road is one of the important factors for considering the break-even point of the commercial forestry management.
    Generally, designing of strip road is carried out in following manners. 1) With reference to topographic maps, forest planning maps, aerial photos, etc., domains to be avoided in route locations, such as a steep slope and a danger zone, is classified. 2) Basic alignment of strip road that includes starting point, terminal point, and some major node points is drafted on a map. 3) Basic alignment is actually field surveyed for the final decision. In previous study, the method of designing the forest road network automatically adapting graph theory has been studied. Under consideration of previous study, it is thought possible to examine the way to determine automatically basic alignment of strip road.
    This research shall be examined on automatically designing of strip road using graph theory and DEM measured by airborne LiDAR. Especially the relation of the alignment of the strip road and the edge direction composed the network of graph theory is considered.
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  • 多衛星データを用いた古代エジプト遺跡Site No. 52の発見について
    惠多谷 雅弘, 中野 良志, 下田 陽久, 長谷川 奏, エルサイードアッバス ザグルール
    2013 年 52 巻 4 号 p. 200-206
    発行日: 2013/09/09
    公開日: 2014/09/01
    DOIhttps://doi.org/10.4287/jsprs.52.200
    ジャーナル フリー
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    There are some Egyptian pharaonic sites discovered by the utilization of optical and microwave satellite data. Those discoveries suggested us that satellite data can be a powerful tool to detect unknown archaeological sites in the desert of Egypt. On the other hand, there are many Hellenistic archaeological sites at the Nile Delta. As a new application of satellite remote sensing, a wide variety of satellite data such as ALOS/PALSAR, Landsat-7/ETM+, CORONA, and WorldView-2 was used to detect Hellenistic archaeological sites distributed at the Nile delta. As a result of the study, a trace of the ground surface in a rectangular shape considered to be undiscovered Hellenistic archaeological site has been found. It is the first example in the history of archaeology of this area that a previously unknown and potential Hellenistic site of the Nile Delta was discovered by satellite data. This is a preliminary report about the discovery of Site No. 52.
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