海洋重力测量网自检校平差

海洋重力测量是在测量平台不断动态状态下进行的一种动态测量，由于受海浪起伏，风，流等扰动因素的干扰，海洋重力观测值将受到水平加速度，垂直加速度，交叉耦合以及Ｅｏｅｔｖｏｅｓ效应等于交错面干扰加速度的影响。最扣一个时期为了提高海洋重力测量成果的质量，世界各国海洋重力测量工作者曾就海洋重力观测网平差问题进行了大量的研究工作。

The self-calibrating adjustment of marine gravity survey network

Based on an analysis of the sources of errors in marine gravity measurements, an error model, firstly, is constructed mathematically which can characterize the change of the systematic errors and with which a new crossover adjustment model is presented in this paper. Then a new method of compensating the systematic errors is suggested, i. e. the self calibrating adjustment. Some questions involved in solving the adjustment problem, such as the rank deficiency, the choice of error model, the weighting of additional parameters and the significance test of compensation efficiency, etc., are discussed in detail. Finally, a practical survey data set is used as a case study to prove the efficiency and reliability of the compensation method.