COMPENSATION OF INSTRUMENTAL ERRORS OF THE SOLID-FRAME THREE-AXIAL DITHERED LASER GYRO

摘要

An instrumental error model of uniaxial ring-laser gyro using angular rate components ω_x,ω_y,ω_z and output signal ω_x can be written as: ω_x =(1 + S_x)ω_x+M_yω_y+M_Zω_z +B_x+n_x , where S_x is a scale-factor error, M ,Mz is misalignment of the gyroscope easing plane with respect to input axes, B_x is the fixed bias error, n_x - random bias error[l]. However, though such type of model is convenient for realization of the mathematical model of uniaxial laser gyroscopes unit (LGU), in our opinion, it does not quite correspond to actually realized algorithms, in particular, for a solid frame three-axial laser gyroscope (TLG).