摘要
光纤陀螺作为光电跟踪伺服系统速度稳定回路的反馈测量元件,它的输出噪声直接影响伺服系统低速跟踪情况下的控制精度。抑制陀螺的输出噪声是改善伺服系统低速特性的有效手段之一。采用了一种简化的卡尔曼α-β滤波算法,使伺服系统的低速精度指标由原来采用移动平均滤波的0.005 2°/s提高到0.002 6°/s。实验证明,该算法可以有效地改善伺服系统的跟踪特性。
Fiber-optic gyro is the feedback measuring sensor of the gyro stabilized platform in electro-optic servo system. Its output noise degrades the control precision of servo system under low speed tracking. It is effective to improve the servo sys tem quality by restraining the output noise of gyro. A simplified Kalman α-β filtering algorithm is applied in actual servo sys- tem. The control precision of servo system is improved from the 0. 005 2°/s to 0. 002 6°/s. Some relative experiments prove that the alogrithm can effectively improve the tracking performance of servo system.
出处
《光学与光电技术》
2012年第6期69-71,共3页
Optics & Optoelectronic Technology
