摘要
本文首次采用差分VLBI技术对月球探测器进行观测,分析了差分VLBI观测模型中的EOP参数精度对探测器坐标先验误差的灵敏度,模拟了差分VLBI观测量;平差计算了坐标参数和EOP参数的验后精度,并给出了计算结果。较理想的定位结果为我国的探月工程奠定了一定的理论基础。
Based on the characteristics that lunar probe is close to the Earth and the advantage that some of non-geometric delay can be eliminated based on Differential-VLBI technique , the application of Differential-VLBI technique for the observation of lunar probe is discussed and analyzed in this article.In order to acquire the real-time location and movement information of lunar probe accurately , it ’ s particularly important to seek ways of improving the precision , one of the most important ways is improving the precision of calculating EOP parameters of the reference systems.So , it ’ s necessary to do studies on the relationship between the precision of coordinate parameters and EOP parameters.In this paper , the sensitivity of EOP parameters to the prior uncertainty of the coordinate of the probe , and the post-test precision of the coordinate parameters and EOP parameters are discussed.
出处
《导航定位学报》
2013年第2期66-70,共5页
Journal of Navigation and Positioning
