Star bell and star calendar separated vector difference decomposition calculating method

• Main Authors: LI XIAOHUI, LIU YA, CAI CHENGLIN, LIU YANG, WU HAITAO
• Format: Patent
• Language: Chinese; English
• Published: 20.05.2009
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The invention relates to a method for calculating a vector difference separated by a star clock and an ephemeris. The method is characterized by comprising the following steps: first, calculating a pseudo-range error by a user positioning equation of three-dimensional space according to information of pseudo-range observation of a master reference station, and distributing the pseudo-range error from a master reference station to each satellite onto the star clock, so as to acquire a separated star clock correction; then, subtracting the star clock correction from the pseudo-range error in observation information of a secondary reference station to acquire a remainder pseudo-range error of each secondary reference station; finally, calculating to acquire a separated ephemeris correction by the user positioning equation of the three-dimensional space and the remainder pseudo-range error of the secondary reference station. The vector difference method greatly reduces DOP value by 9 times minimally, and saves a