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Spherical harmonic the gyro model analysis with control circuit technology research

Author: ZhouQiang
Tutor: LiuNuo;FangZhen
School: University of Electronic Science and Technology
Course: Electronics and Communication Engineering
Keywords: HRG Control system Control circuit Allan variance
CLC: V241.5
Type: Master's thesis
Year: 2009
Downloads: 58
Quote: 0
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Abstract


Hemispherical resonator gyro (Hemispherical Resonator Gyro) is a high-precision, high reliability , long life of new solid-state gyroscope , it is a base of the radial vibration using hemispherical shell lip standing wave precession effect to sense rotation new types of vibratory gyroscope . The mathematical model of this paper by analyzing hemispheric resonator gyro and motion characteristics , force balance mode control law . Control theory Gyro Control Model analysis by theoretical analysis, experimental testing , simulation , design , research , improved hemispheric the gyro control systems correction link , optimize the parameters of the hemisphere gyro control system to meet gyro dynamic performance requirements . On the control unit circuit design optimization, gyro readout signal and the excitation signal detection accuracy of the method for enhancing the combined higher order band-pass filter is designed . Analyze the characteristics of the gyro temperature , and using the compensation to improve the temperature characteristics of the gyro output , and reduces the influence of the environmental temperature on the gyro performance . The gyro control model and control circuit technology research, analysis , improved gyro performance . HRG data processing Allan variance analysis , to try AR (2) model hemisphere gyro drift data modeling and FLP filter , and use of the Allan variance analysis results compared before and after filtering .

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CLC: > Aviation, aerospace > Aviation > Aircraft instrumentation,avionics, flight control and navigation > Aircraft instrumentation,aerospace equipment > Gyro instrument
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