【摘要】 为了补偿捷联惯导中惯性测量组件的误差,根据惯性测量组合中陀螺的动、静态误差在频率范围的不同分布,介绍了小波滤波的一般理论和方法,提出用一种利用最优低通IIR滤波器和小波滤波相结合的方法抑制惯性测量组合中陀螺静、动态误差。实验数据仿真结果表明,该方法有效抑制了陀螺噪声,提高了陀螺输出稳定性和使用精度。更多还原

【Abstract】 In order to compensate for the main errors of Inertial Measurement Unit(IMU) in Strapdown Inertial Navigation System(SINS),the principle of wavelet filter method is introduced according to the dynamic/static error distribution of gyro in the frequency scope.A new method is presented for restraining the dynamic/static error in IMU by combining low-passing filter with wavelet filter.The result shows that this method is effective and can improve the precision of the IMU.更多还原