Beidou inertial navigation deep integration navigation microsystem

The invention discloses a Beidou inertial navigation deep integration navigation microsystem. The Beidou inertial navigation deep integration navigation microsystem comprises a three-axis micromechanical gyroscope, a three-axis micromechanical accelerometer, an odometer encoder, an altimeter, a magnetic field meter, a Beidou/GPS dual-mode chip, a signal conversion and interface circuit, a digital signal processor and a secondary power chip, wherein the digital signal processor is used for receiving digital signals converted by the signal conversion and interface circuit and calculating digital signals corresponding to the angular speed and the accelerated speed so as to obtain the speed and the displacement of a carrier, and the digital signal processor is further used for carrying out the Kalman filtering algorithm on digital signals corresponding to the speed and the displacement of the carrier, travel information, height information, magnetic field information, Beidou signals and GPS signals so as to obtain navigation parameters. According to the Beidou inertial navigation deep integration navigation microsystem, a Beidou, the gyroscope, the accelerometer, the magnetic field meter, the altimeter and functional chips of signal conversion, digital signal processing and the like are organically integrated, full-parameter navigation and seamless navigation can be achieved, and interference resistance and application reliability of the whole navigation system are improved.