In this paper, the multiple points Gauss orbital determination method is given for optical measuring angle data, the formulae arc simple, the method can be extened and can be used easily.

Research on the Orbit Determination Style of TDRS and Precision Analysis;

In this paper the trajectory reversing method is adopted to estimate and visualize the stability regions for simple power systems.

An approximate covariance analysis for orbit determination of geostationary satellites was given using two-way range data with and without VLBI-augmented measurements.

The methods of geometric orbit determination (OD) for GPS based single frequency receivers aboard low earth satellites are studied.

The thesis deals more deeply with the geometric orbit determination and the dynamic orbit smoothing of geometric orbits for low-orbit satellite equipped a GPS receiver onboard, based on precise orbits and clock offsets of GPS satellites.