Multi-satellite navigation system positioning method based on inter-satellite weighting network

• Main Authors: XIONG AO, HE JUNYUAN, GUO SHAOYONG, LIU XU
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2024
• 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 provides a multi-satellite navigation system positioning method based on an inter-satellite fixed weight network. The method comprises the following steps: calculating pseudo-range observation values corresponding to a receiver and target satellites in a multi-satellite navigation system based on a standard single-point positioning model; according to the pseudo-range observation value, obtaining an elevation angle, an Euclidean distance, a signal-to-noise ratio and a pseudo-range residual error of a corresponding target satellite; obtaining a satellite observation value characteristic matrix based on the elevation angle, the Euclidean distance, the signal-to-noise ratio and the pseudo-range residual error; and inputting the satellite observation value characteristic matrix into an inter-satellite weighting network, and outputting and obtaining observation value weights of the target satellites, so that the multi-satellite navigation system performs positioning based on the observation value wei