深空导航相位参考干涉测量技术研究

针对深空导航不断提高的测角精度需求和传统无线电干涉测量技术所面临的局限，介绍了相位参考干涉技术用于深空导航的优势，重点分析了该技术的基本原理和两个关键观测参数的影响，综述了该技术在国外的研究进展情况，最后介绍了我国开展该技术研究的软硬件基础和利用嫦娥三号任务数据开展的相位参考干涉测量试验情况，试验结果表明了基于我国深空测控资源开展该技术研究的可行性和高精度，有助于推动该技术转向实际工程应用，提高我国深空导航无线电干涉测量水平。

Research on Phase Referencing VLBI Technique in Deep Space Navigation

To meet the high level requirements of the spacecraft angular measurement accuracy and to improve the spacecraft radio interferometry techniques in deep space exploration, the phase referencing very long baseline interferometry (VLBI) technique is studied. The advantages and fundamental theories of this new technique are discussed, and two key observation parameters are then analyzed. Then, the research development of the phase referencing VLBI technique are reviewed. Finally, the software and hardware infrastructures used to conduct an experiment of this technique in China are presented with results of a preliminary experiment carried out in Chang’E-3 mission. The feasibility and high-accuracy of the phase referencing VLBI technique have been proved for its appling in future missions and improving the capabilities of radio interferometry in China.