用于微小卫星自主导航控制系统地面仿真的磁强计数学模型

对基于磁强计自主导航微小卫星控制系统地面仿真的磁强计数学模型建立进行了研究。给出了地磁场理论数据的生成模型及磁强计的测量模型，并据此建立了磁强计测量数据生成的数学模型。对低轨圆轨道微小卫星的仿真计算结果表明：由该磁强计数学模型获得的磁场强度测量值与文献中真实磁强计测量数据差异很小，验证了模型的有效性和准确性。

Magnetometer Model Used for Micro Satellite Ground Simulation of Control System

Magnetometer model used for ground simulation-control system of micro satellite was investigated in this paper. A data generating model of magnetic field and a measure model of magnetometer were proposed, then the algorithm for generating magnetometer measure data was built. The simulation results for a case of low orbit satellite flight showed that the error between the generating data of using the magnetometer model and the measure data of getting from the real magnetometer during the on-orbit work was insignificant. The effectiveness and exactness of the model were proved.