Long baseline monitoring method and device based on ionosphere delay estimation model and medium

• Main Authors: YI QINGGEN, YANG WEI, SHAN HONGYU, PAN GUOFU
• Format: Patent
• Language: Chinese; English
• Published: 18.04.2023
• 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; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The invention discloses a medium and long baseline monitoring method and device based on an ionosphere delay estimation model and a medium, and the method comprises the steps: adding an ionosphere parameter for each satellite, and constructing an ionosphere delay time constraint model through a random walk model; a narrow lane floating point ambiguity is obtained through a Kalman filtering narrow lane double-difference observation model, and a wide lane floating point ambiguity is obtained through a filtering wide lane double-difference observation model; the wide lane fixed ambiguity is obtained through LAMBDA search fixation, the constrained narrow lane floating point ambiguity with high precision is selected, and then the narrow lane fixed ambiguity is obtained through LAMBDA search fixation; and checking the narrow lane fixed ambiguity, and updating the position parameter. According to the method, ionosphere delay difference and time correlation are fully considered, and the quality and precision of mediu