中文摘要：

本文根据卫星线阵CCD指向角的特点提出简化解算模型，用单位四元数来描述旋转角，以几乎无偏估计作为平差方法。通过一系列模拟实验证实在外方位元素初值比较准确的前提下可以以较高精度求得设计的参数。模拟了不同的姿态稳定度、控制点精度、控制点密度、岭参数及航线长度对解算结果的影响。

英文摘要：

A simplified calculation model of CCD look angles is proposed according to its character. It uses unit quaternion to represent rotation and almost unbiased estimators as adjustment model. It demonstrates that on the premise of high precise OEs, the designed parameter can be gotten with high precision. It simulates the influence on the parameter result under circumstances of different attitude stability, GCP precision, GCP density, ridge parameter and length of flight course.