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本文介绍了一个位置精度为0.36″的惯导级加速度计测试/标定转台数控系统的研究结果。其中包括:机械谐振特性测量和在系统中的抑制方法;深度的速度反馈对克服摩擦力等的干扰作用;用描述函数法和系统仿真对量化系统小范围稳定性的研究等问题。此外,文中还包括高增益宽频带线性系统的参数设计和采用一种非线性复合控制的方法,达到了系统快速定位过程的无超调等内容。
This paper presents the results of a numerical simulation of inertial navigation accelerometer test / calibration turntable with a positional accuracy of 0.36 ", including: measurement of mechanical resonance characteristics and suppression in the system; depth velocity feedback to overcome frictional forces Interference function.The research on the small-scale stability of the quantized system is described by using the description function method and the system simulation.In addition, the parameter design of high-gain wideband linear system and the method of adopting a nonlinear compound control are also included in this paper, Rapid positioning process without overshoot and so on.