국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Development of Kinematic GPS Software, KINGS, and Flight Test Evaluation
저자	Toshiaki Tsujii, Masaaki Murata, Masatoshi Harigae, Takatsugu Ono, Toshiharu Inagaki
Keyword	ambiguity resolution On-the-Fly; kinematic GPS; flight experiment; dual frequency
URL	http://send.nal.go.jp/send/jpn/dlpdf.php3/naltr0001357t.pdf?id=NALTR0001357T
보고서번호	NAL TR-1357T
발행년도	1998.10
출처	NAL (National Aerospace Laboratory of Japan)
ABSTRACT	Precise positioning using GPS carrier phase measurement has been widely used in static applications, I.e., geodetic surveying. However, it can also be applied to the precise positioning of a moving platform if an ambiguity contained in the GPS carrier phase measurement is resolved during the motion. The technique to resolve the ambiguity on the way/fly, which is called the OTF (On-the-Fly), has been investigated by many authors. In this paper, a new OTF algorithm is proposed and its feasibility for several kinds of applications is demonstrated. The differential GPS positioning using carrier phase measurements is called Kinematic GPS (KGPS). We have developed our own Kinematic GPS Software, KINGS, in which the OTF is the most significant algorithm, and have evaluated its performance by conducting a lot of flight experiments using a research aircraft of the National Aerospace Laboratory (NAL). As a result, the correct ambiguity was resolved nearly instantaneously with more than 98% probability when the distance between the aircraft receiver and the ground reference receiver was less than 20km, and five or more satellites were observed. Once the ambiguity was resolved, the aircraft position was determined within 10cm (3 delta).