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:1992
卷号:XXIX Part B1
页码:50-55
出版社:Copernicus Publications
摘要:There is a method of low altitude aerophotography for large scale mapping byphotogrammetry. An aerial platform is provided by a ultra-light aircraftreformed Bee 3, Which with T-O-weight 315 Kg, cruise speed 65 Km/h, two seatsin tandem. The front seat removed at this position, open a photo-window andmount the camera. I t is Aero-A-17 10/18x18 (or A 7000 lux may be flying and exposure. The photograph shall be of an imagequality and geometry quality suitable for photogrammetric mapping orinterpretation. Satisfy all such as following constraints:1) Linear distortion of image< 0.03 mm; 2) Tilt: < 5°: 3) crab < 8°;4) Altitude difference < 5% H (H: flight altitude): 5) Forward overlap55 - 70 %: 6) Lateral overlap 15 - 30 %.Thanks to slow speed of cruise. The micro-light aircraft can be flying safelyin the low altitude, the large scale of aerophotography shall be acquired.The micro-light aircraft combined wi th the camera of short focal length andlarge format that created the fundamental and advantages condi tion not onlyprovided facile, cheap cost and short period of aerophotography for the user,but also advanced the accuracy of aerophotogrammetric mapping. For instance.The inspected data from Guangzhou-Shenzhen-Zhuhai High-speed Highway field.The accuracy arrive at the level of plane error: M = ±0.557 M (RMS);pelevation error: Mh= ±0.221 M (RMS).This set apparatus of aerophotography is more appropriate for developingcountries.