三维激光成像系统构像点定位误差分析方法

三维激光成像系统是一种包含激光扫描仪、惯性导航系统（SINS）、全球定位系统（GPS）等多种先进技术的复杂系统。影响三维激光成像系统构像点定位精度的因素有扫描仪测距误差、扫描角误差、姿态测量误差、GPS定位误差、系统集成误差。在三维激光成像系统设计开始时需要确定各分系统的技术指标，这需要确定上述各误差项对构像点定位精度的影响大小。为了确定上述各误差大小与构像点定位误差之间的量化关系，研究了一种三维激光成像系统误差分析方法，推导了系统误差方程。通过试验验证，该方法能够准确确定各误差项对构像点定位误差的影响，为系统设计时对各分系统提出合理技术指标提供理论支持。

The method of error analysis in 3D laser imaging system

The 3D laser imaging system is a complex system which contains a variety of advanced technology, including laser scanner, SINS and GPS. Many factors may have great effect on the error of 3D laser imaging system. Such as the error of scanning angle, the error of attitude, the error of GPS and the error of system integration. At the beginning of system designing, it is important to confirm the technical requests of small system. It is important to make sure the effect of every factors. In order to make sure the relation between the error of point and the factors mentioned in front, a useful method is invented. This method can make certain the effect of every factor on the orientation of point. It is the basic of system designing.