遥感平台摩擦力矩的非线性校正补偿方法

航空遥感惯性稳定平台可以隔离外部扰动对载荷的影响,确保遥感载荷高精度成像,但摩擦的存在,造成了不平稳、爬行等现象,导致系统动态响应缓慢、稳定精度低、抗干扰能力弱,影响平台动态性能.本文有针对性的提出了基于非线性校正的摩擦力矩补偿方法,仿真实验结果证明,该方法有效地抑制了摩擦,消除了低速爬行现象,提高了抗干扰能力.

Method of Friction Compensation Based on Nonlinear Revision in Remote Sensing Platforms

Airborne remote sensing inertial stabilized platforms can isolate exterior disturbances which act on remote sensing payloads, insuring the payloads to obtain high precision image. However, friction in the platform arouses the phenomenon of non-placidity, crawl and so on, results in slow dynamic response, low stabilized accuracy and weak anti-jamming ability, and finally affects dynamic performance. This paper proposes a method of friction moment compensation based on nonlinear revision with pertinence. Simulation results prove that, this method can restrain friction simply and effectively, avoid low-speed crawl, and improve the ability of anti-disturbance.