期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2000
卷号：XXXIII Part B4 (/1-3)
页码：238-246
出版社：Copernicus Publications
摘要：Modern aeri al surveyi ng systems content GPS receivers. It allows to fi x co-ordi nates of projection centers (exposure stations) during the flight. Theoreti cal model of mutual connection between the center of GPS receiving antenna and aerial camera in case of air carri ers ti lt is considered in the first part of the paper. As conclusions it i s underlined that for accurate deter mi nation of co-ordinates of projection center the angles of ai rcraft til t and angles of camera ti lt have to be known. Several ways for solution of this task are proposed. In the second part of paper the theoretical bases of analytical aerial triangulati on i n case of known co-ordinates of projection centers (aerial triangulation and terrestrial tri angulation). Difference between al ready existi ng methods and proposed method is that in last case the co ntrol points are not needed at all. At first si ght, it is paradoxical conclusion because when linear elements of exteri or orientation are known, angles of aeri al image tilt can be arbi trary. For sol ution of this problem i t i s proposed to use pho to grammetric connectio ns which exist between all i mages o f several fli ght strips. In the third part of paper the results of testing of t he aerial triangulation met hod usi ng block o f model i mages are shown. Investi gations are implemented for t hree variants of control network Objective accuracy evaluation has corroborated rightness of the theoretical aspects and al lowed to recommend method for practi cal applicati on.
关键词：GPS; Aerial tri angulation; P hoto grammetry; Aerial Survey; Aerial Camera; Mathematical Modelling
