摘要
固定翼无人机航空测量系统在进行地形测量时,存在着测量误差。这些误差主要来源于仪器误差、人为误差、气候等外界因素影响产生的误差。针对仪器误差、人为误差,探讨了误差修正方法。主要通过建立数学模型、调整固定摄像机的位置和提高操作人员的技术水平来修正误差。以实际航空摄影测量图片进行了试验性误差分析。经过误差修正的图片精度满足国家相应大比例尺成图的精度要求。
The measurement errors exist in topographic survey by fixed - wing unmanned aircraft, which mainly come from instrumental and artificial errors, climate change. In the light of the error sources, the error correction methods are analyzed. The errors can be corrected through setting up mathematical correction model, adjusting the location of device and improving the tech- nical skill of operators. An analysis on tentative error correction is conducted through a practical case. The accuracy of corrected maps can meet the requirements of large - scale topographic mapping.
出处
《人民长江》
北大核心
2010年第11期54-56,共3页
Yangtze River
关键词
无人机
CCD
航空摄影测绘
畸变差
基线
unmanned aircraft
CCD
aerial photography
distorted error
base line
