联合平差中大地网定向和尺度系统误差的影响和分离

本文从地面大地网的定向、尺度系统误差的定义及对坐标的影响关系出发,分析了这些系统误差与地面网、卫星网之问转换参数的关系,推导了系统误差对转换参数的影响公式。在此基础上,提出了转换参数的区域性问题,并提出了分离区域性定向误差与尺度比参数的联合平差模型。

Effects and Separation of Systematic Orientation and Scale Errors of Terrestrial Geodetic Network in Combined Adjustment

This paper first analyses the relationship between systematic orientation and scale errors and transformation parameters of the terrestrial and the satellite networks in the ligtht of the definitions of these systematic errors and their effects on coordinates, and then it derives the formulas for the effects of systematic errors on the transformation parameters. The problem of regionatism of the transformation parameters is also discussed. Finally, a combined adjustment model is given to separate regional orientation errors and scale errors.