摘要
针对光电稳定跟踪装置框架运动在非正交位置时存在的耦合现象影响稳定跟踪精度的问题,建立并分析框架间非线性耦合关系式,利用非线性解耦控制原理,证明框架间是可解耦的。运用微分几何方法实现对框架间的解耦。实验结果表明,该方法可以使光电稳定装置的框架在处于非正交位置时,框架间存在的耦合值减少到原来的1/4,进而解决了框架间因耦合产生的对系统图像稳定的影响,将图像的稳定运动最小间距从2个像素提高到1个像素。
For the frameworks of Light of sight（LOS） stabilized device has a coupling phenomenon when runs non-orthogonally,and it will affect the stability precision.The kinetic equations of device frameworks are modeled and analyzed,and it is proved that the frameworks can be decoupled by non-linear decoupling control theorem.The differ-ential geometry method is used for decoupling the frameworks system.Experimental results show that： when the device runs non-orthogonally,the method can decrease the coupling value to 1/4 than before,which makes the frameworks coupling impact the picture stabilization inconspicuously.Then the least moving step of the picture is 1 pixel than be-fore 2 pixel.
出处
《电子测量与仪器学报》
CSCD
2010年第11期999-1002,共4页
Journal of Electronic Measurement and Instrumentation
基金
国防航空基金(编号:07H52053)资助项目
关键词
视轴稳定
系统建模
非线性解耦
微分几何
sight axis stabilization
system modeling
non-linear decoupling
differential geometry
