Study On Precise Orbit Determination Of Compass Navigation Satellite System

In the 21st century, with the successful application of navigational satellite, space technology develops rapidly, which plays a more and more important role in military, transportation and daily life. Now there are some completed satellite navigation systems able to work alone, such as American GPS and Russian GLONASS.China is actively building independent Beidou Satellite Navigation System (BDS), which had 14 normal operated satellites in orbit in the end of December 2012.The high-precision application of BDS needs satellite precise orbit and clock correction products.As for determination of BDS precise orbit and clock error, the dissertation aims at improving orbit determination precision by studying different perturbation error correction methods and evaluating the ability of BDS high-precision positioning.The experimental results have certain reference values to reveal BDS service ability at the present stage. The main research works of this dissertation are as follows:1. Summarization of various satellite navigation systems construction situation, introduction to research status of data quality analysis, precise orbit determination and precise point positioning (PPP), and overall summarization of navigation satellite data processing methods.2. Introduction to theory and basis of navigation satellite data processing, elaboration of BDS preprocessing theory and methods, and analysis of methods' applicablity using various experiments to have whole mastery of BDS data quality control.3. Study on BDS precise orbit determination theory, analysis of influence on orbit determination caused by various perturbative forces. Analysis of effects on orbit and clock error that using one-step or two-steps method on the basis of regional monitoring station and global monitoring station respectively, and conclusion of BDS orbit determination precision at present.4. Experiments of static and dynamic PPP calculation using high-precision orbit and clock error data, analysis of BDS service level using these products.