通信卫星干扰源定位系统的轨道改进研究

针对干扰源定位系统中通信卫星轨道误差较大问题，文章采用卫星精密定轨策略，对干扰辐射源定位系统中通信卫星的轨道改进问题进行了研究。详细研究时差与频差的测量原理，并对地球同步轨道通信卫星轨道给出了较为符合该类卫星轨道类型的力学建模。采用高精度数值积分器及参数估计方法进行轨道确定和系统差标定。通过仿真和实测资料处理分析，定轨精度可以达到十米至百米量级。其理论性得到验证，同时能够满足我国相关行业的工程需求。

Research on the Orbit Determination of Communication Satellite for Interference Source Localization System

In order to improve orbit determination accuracy of communications satellites in the interference source localization system, a accurate orbit determination technique for a communication satellite has been studied. The principles of DTOA and DFOA measurement techniques have been studied in details, and also the orbit mechanics model of the GEO satellite in the interference source localization system is developed in this paper. High-accuracy numerical integrator and parameter estimation method have been employed in the orbit determination. Through simulation and measured data processing and analysis, the RMS of orbit reaches hundreds of meter, which is better than the current published results in related fields. The work confirms that the orbit determination method in the article is validating, and also could be an approach to the related program.