初轨确定

卫星初轨确定在卫星轨道改进中起着重要作用。

Initial orbit determination plays an important role in orbit determination .

随着测量技术的发展，测量数据不断增多，为初轨确定提供了良好的基础。

With the development of measurement technology , the data become more and more , which provides a good foundation for initial orbit determination .

GPS实时姿态测量技术与多径误差研究实时定轨条件下初轨确定方法研究

The Study on the GPS Based Real - Time Attitude Determination Technique and Multipath Effects

利用双星定位系统和雷达高度计的航天器初轨确定算法

Preliminary Orbit Determination of Spacecraft Based on Double Satellite Positioning System and Radar Altimeter

只有单站测速数据的情况下，传统的定轨方法难以实现初轨确定。

Its hard to determine the initial orbit for traditional methods with Doppler measurement data of only one TT & C station .

仿真实验证明，该算法可快速确定航天器初轨，位置误差约为420.3m，速度误差约为30.5m/s，有效地提高了航天器的初轨确定精度。

Simulation experiment proves that the algorithm can determine preliminary orbit rapidly and its precision is enhanced as well . Position error of this system is about 420.3 m while the velocity error is about 30.5 m / s.