卫星像片姿态计算及其在空中三角测量中的应用

Satellite Photograph Attitude Calculation and Its Using in Aerotriangulation

卫星像片姿态数据是无地面控制条件下像片空间三角测量的关键数据，在区域网整体平差计算中，它能有效抑制系统误差的累积，从而精确测定无地面控制区域的目标和控制网点坐标。本文简要介绍了卫星恒星像片姿态计算的基本原理，利用模拟数据进行了姿态角整体可靠性和整体精度指标的分析试验，实际处理了若干恒星像片，对姿态角计算精度进行了统计分析。文章最后对卫星像片姿态数据用于卫星像片空中三角测量进行了计算分析，结果表明有像片姿态角控制时能有效地消除系统误差累积，提高了整体精度。

Satellite photograph attitude data is the key data of photograph aerial triangulation without ground control. It restrains accumulations of system error effectively , thereby targets and control net point coordinates without ground control can be measured exactly in the calculation of block adjustment. This paper introduces the fundamental of satellite star photograph attitude calculation briefly, and the author had done some analysing tests of attitude angle integrated dependability and integrated precision guideline, using some simulation data,practically treated some star photographs, and analysis of the attitude angle precision also had been done, Finally, calculation and analysis about the satellite photograph attitude data using in satellite photograph aerial triangulation are given, the result indicates the cumulate of system error has been eliminated availability, and the integrated precision has been improved.