基于广义预测的双转动扫描系统同步控制

针对遥感相机扫描系统双转动装置的同步控制要求，提出一种基于广义预测模型的交叉耦合同步控制策略。建立基于广义预测控制的模型，结合交叉耦合同步控制策略，实现双转动装置的控制精度要求。为了使交叉耦合同步算法提供的误差在两个电动机中的分配更加合理，引入分配因子，并进行自适应选择，最终削弱由于系统特性的不匹配及环境的不确定性等因素产生的双转动扫描系统同步误差，使其满足控制精度的要求。通过仿真实验，发现随着预测步数的增大，系统的同步误差减小，控制精度提高，满足同步控制精度的要求，验证了所提出方法的有效性。

Synchronization Control for Dual-revolution Scanning System Based on Generalized Predictive Algorithm

A cross coupling synchronization control strategy is proposed to satisfy the accuracy require-ment for dual-revolution equipment in infrared camera scanning system. To achieve the control accuracy, a general predictive control model is built and the synchronization control strategy is combined. Owing to the angular speeds of two motors are identical, the distribution coefficient is introduced to balance two system synchronization error weight by adaptive method. The final objective is to weaken the unmatched control char-acteristics and the environmental uncertainties and to satisfy the control accuracy requirement. Through the simulation experiment, the synchronization error decreases with the evolution of prediction step, and the control accuracy is improved, the synchronization accuracy requirement of system is satisfied. The effectiveness is verified by simulation method.