四维整体大地测量实用模型及观测方程

THE PRACTICAL MODELS AND OBSERVATIONAL EQUATIONS OF FOUR DIMENSIONAL INTEGRATED GEODESY

顾及时空几何及物理效应的四维整体大地测量,给大地测量提出了许多新的研究课题,同时也为大地测量开辟了新的应用前景。本文从实用观点出发,建立了四维整体大地测量实用模型,并给出了地面观测值的观测方程。在所有观测方程中,都以点位速率和重力位速率为未知数,以便减少观测值的历元归算;而且随着观测历元的增加,速率参数的精度将不断提高。

The four dimensional integrated geodssy, taking into account space-time geometric and physical infuen, has put many new reseach questions before us, and opened vast application vistas for geodesy. The practical models of the four dimensional integrated geodesy is established in the practical point of view; and the linear observational equations for terrestrial observations are given. In order to avoid observation epoch transformations, the model paramters are chosen as velocities of position and gravity potential. Therefore, with the increase of the epoch nomber the precision of the velocity parameters will be raised.