An adaptive fading kalman filter algorithm for rtk
A filtering algorithm and self-adaptive technology, applied in radio wave measurement systems, instruments, measuring devices, etc., can solve problems such as divergence, poor filter robustness, and difficulty in accurately establishing filter system models, so as to achieve simple and easy application of the algorithm The effect of engineering realization and improvement of dynamic adaptability
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[0081] The technical solutions of the present invention will be described in detail below in conjunction with specific embodiments.
[0082] 1. a kind of RTK uses self-adaptive fading Kalman filtering algorithm, is characterized in that, comprises the steps: (1) satellite captures tracking and synchronization
[0083] The base station and the rover capture satellite navigation signals sequentially, and perform bit synchronization and frame synchronization on the tracking satellites;
[0084] (2) Observation extraction
[0085] The satellite observations after frame synchronization are extracted, and the ephemeris parameters of each navigation satellite after frame synchronization are obtained; the satellite observations after frame synchronization include satellite pseudorange and carrier phase observations.
[0086] (3) Determine the satellite position and speed calculation
[0087] Input the ephemeris parameters obtained in the known satellite launch time and step (2) to c...
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