Beidou satellite navigation receiver based carrier wave tracking loop crystal oscillator acceleration speed sensitivity coefficient calibration method

The invention relates to a Beidou satellite navigation receiver based carrier wave tracking loop crystal oscillator acceleration speed sensitivity coefficient calibration method. The carrier wave tracking loop crystal oscillator acceleration speed sensitivity coefficient calibration method comprises the basic steps of obtaining ephemeris and signal transmitting time of a Beidou navigation satellite, calculating a Doppler frequency theoretical value of the Beidou navigation satellite relative to a receiver, obtaining a carrier wave loop of the Beidou navigation satellite to control the Doppler frequency theoretical value, calculating tracking loop frequency difference observation information of the Beidou satellite navigation receiver, designing a self-adaption EKF filter to estimate the frequency difference information of a crystal oscillator and calculating acceleration speed sensitivity coefficients in different axial directions. The Beidou satellite navigation receiver based carrier wave tracking loop crystal oscillator acceleration speed sensitivity coefficient calibration method can utilize frequency following-up characteristic of the carrier wave tracking loop of the Beidou satellite navigation receiver to obtain a frequency value changing along with gravity acceleration of the crystal oscillator according to satellite Doppler frequency computed based on the position and speed of the satellite and can be widely popularized and applied in a satellite navigation system.