机械与电子
機械與電子
궤계여전자
MACHINERY & ELECTRONICS
2014年
5期
3-7
,共5页
祁士森%方昉%罗欣%陈学东
祁士森%方昉%囉訢%陳學東
기사삼%방방%라흔%진학동
惯性稳定平台%稳像精度%扰动观测器%重复控制
慣性穩定平檯%穩像精度%擾動觀測器%重複控製
관성은정평태%은상정도%우동관측기%중복공제
inertially stabilized platform%image %stabilizing precision%disturbance observer%repeti-tive control
为了减小载体扰动对机载光电设备的影响，需要设计保证惯性稳定平台稳定的控制算法。以某型号惯性稳定平台为研究对象，通过建立其机电系统的动态模型，分析了影响平台稳像精度的扰动因素，在此基础上设计了扰动观测器。此外，为有效抑制载体的周期性扰动作用，针对性地设计了重复控制算法。仿真结果表明，所提出的扰动观测器与重复控制相结合的复合控制算法能够有效地抑制载体扰动，提高系统稳像精度。
為瞭減小載體擾動對機載光電設備的影響，需要設計保證慣性穩定平檯穩定的控製算法。以某型號慣性穩定平檯為研究對象，通過建立其機電繫統的動態模型，分析瞭影響平檯穩像精度的擾動因素，在此基礎上設計瞭擾動觀測器。此外，為有效抑製載體的週期性擾動作用，針對性地設計瞭重複控製算法。倣真結果錶明，所提齣的擾動觀測器與重複控製相結閤的複閤控製算法能夠有效地抑製載體擾動，提高繫統穩像精度。
위료감소재체우동대궤재광전설비적영향，수요설계보증관성은정평태은정적공제산법。이모형호관성은정평태위연구대상，통과건립기궤전계통적동태모형，분석료영향평태은상정도적우동인소，재차기출상설계료우동관측기。차외，위유효억제재체적주기성우동작용，침대성지설계료중복공제산법。방진결과표명，소제출적우동관측기여중복공제상결합적복합공제산법능구유효지억제재체우동，제고계통은상정도。
In order to reduce the influence of carrier disturbances on airborne optoelectronic de-vices,a control algorithm is needed to guarantee the stability of the inertially stabilized platform (ISP).A type of ISP is taken as the research ob-j ect.Through modeling of its electromechanical system,disturbance factors that affect the image stabilizing precision are analyzed,and a disturbance observer is designed based on this.In addition,a repetitive control algorithm is designed to suppress the periodic disturbance of the carrier.Simulation results suggest that the proposed control algorithm which combines a disturbance observer with the re-petitive control can suppress carrier disturbances effectively and improve the image stabilizing preci-sion.
