Digital ASIC (Application Specific Integrated Circuit) circuit system of rate integration hemispherical resonator gyroscope

The invention discloses a digital ASIC circuit system of a rate integration hemispherical resonator gyroscope. The digital ASIC circuit system comprises an ADC interface module; the signal demodulation module obtains information including gyro harmonic oscillator main standing wave energy, gyro harmonic oscillator orthogonal wave amplitude, a phase difference between a gyro harmonic oscillator standing wave signal and a carrier wave signal, and a gyro harmonic oscillator precession angle; the frequency phase control module outputs a carrier signal of the gyro harmonic oscillator; the energy control module stabilizes the vibration energy of the gyro harmonic oscillator to a fixed value; the orthogonal control module suppresses the amplitude of the orthogonal wave to 0; the angle detection module is used for resolving the precession angle of the gyroscope harmonic oscillator and outputting the angle to participate in orthogonal decomposition; the RS232 interface module is used for sending the output precession