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《Beijing Surveying and Mapping》 2018-10
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Analysis on Ground Sample Distance Issues of Low-Altitude Unmanned Aerial Vehicle Survey

ZHANG Xiaoyu;ZHANG Jianli;College of Geomatics,Xi'an University of Science and Technology;  
The attitude of low-altitude UAV photogrammetry system has a very important influence on the subsequent data processing and application.Compared with the traditional aerial survey,the UAV is more susceptible to weather factors such as air currents,causing drastic changes in attitude such as pitch,roll and yaw.The instability of posture not only reduces the image quality,but also affects a series of problems such as ground resolution.We introduced the classification of UAV flight platform,several common digital cameras and low-altitude aerial survey optical characteristics in this paper.And the effects of attitude,altitude and focal length on the ground resolution of the image were discussed and analyzed when it is unstable.
【Fund】: 国家自然科学基金(51674195;41771576)
【CateGory Index】: P231
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