摘要
介绍了一类使用速率陀螺为测量元件的光电平台稳定回路的构成,分析了速率稳定回路中影响输出角速度的三个因素,重点就干扰力矩对平台稳定性的影响进行了分析。针对静态力矩刚度的要求,提出了采用一种新的高阶超前滞后校正的校正方法。理论上分析若采用滞后超前校正,而不考虑静态刚度要求,必然得到稳定回路不能抵抗常值干扰力矩的结论。为了对比分析,本文给出了两种校正方法的校正结果,并运用Simulink进行了速率稳定回路抵抗常值干扰力矩的仿真实验。仿真结果验证了理论分析的正确性。
The structure of the velocity stablilized loop of the Electro-Optical Systems used rate gyro as sensor was introduced. In the velocity stablilized loop, three factors impacting output angular rate was analyzed. Specially, platform stabilization alteration influenced by disturb moment was studied. A new useful correcting method named higher-order lead-lag correcting net was created to achieve requirement of static momental rigidity. If static momental rigidity target did not calculated, lag-lead correcting method would result in the velocity stable loop losing the capacity of resistance constant disturb moment. Two kinds of correcting method used in the velocity stablilized loop were simulated. The result shows the validity of concerned conception.
出处
《自动化与仪器仪表》
2008年第6期17-20,共4页
Automation & Instrumentation
关键词
静态力矩刚度
陀螺稳定平台
视轴稳定
Static momental rigidity
Gyro-stabilized platform
LOS stabilization
