机载三维Laser成像传感器定位方程的综合误差分析
A Synthetic Error Analysis of Positioning Equation for Airborne Three-Dimensional Laser Imaging Sensor
摘要：
对机载三维成像传感器单点定位方程进行了精确误差分析。利用微分学和精度分析原理，推导出点位误差及其相关因素的数学表达式，说明了各误差源对纵、横坐标的影响。全面分析了相关的误差来源及其可达到的精度。最后给出了两个算例，比较了在相同误差源下椭圆轨迹扫描和直线轨迹扫描的定位精度，并得出了相应的结论。
英文摘要：
This paper presents the exact error analysis of point positioning equation used for airborne three-dimensional(3D) imaging sensor. With differential calculus and principles of precision analysis a mathematics formula on the point position error and relative factors is derived to show how each error source affects both vertical and horizontal coordinates. A comprehensive analysis of the related error sources and their achievable accuracy are provided. At last, two example figures are shown to compare the position accuracy of elliptical trace scan and the line-trace scan are drawn under the same error source and some corresponding conclusions.
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