Real-time PP-RTK combined positioning method

• Main Authors: DENG YUZHEN, ZHANG ZHIQIANG, LI SHUAI, LI WEI, WU QIAN, CAI CHENGLIN
• Format: Patent
• Language: Chinese; English
• Published: 09.04.2021
• 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 discloses a real-time PPP-RTK combined positioning method, and the method comprises the following steps: 1, carrying out the positioning at a moment t1 by employing a real-time PPP technology, and obtaining the position coordinates of a moving station; 2, judging whether the current moment tt1 is greater than or equal to T or not, and if so, turning to the step 1; otherwise, entering the step 3; 3, setting a virtual reference station, using the moving station position at the moment t1 as the virtual reference station position, carrying out real-time carrier phase reconstruction, and obtaining a carrier phase observation value of the virtual reference station at the current moment; 4, based on the carrier phase observation value of the virtual reference station at the current moment and the observation data of the moving station, carrying out positioning by adopting an RTK technology to obtain the position of the moving station at the current moment; and 5, returning to the step 2 at the next obs