直升机地形跟踪控制的广义预测控制方法  

A Generalized Predictive Control Method for Helicopter Terrain Following

作　　者：孙向春[1] 曹义华[1] 李栋[1] 陈科[1] 

机构地区：[1]北京航空航天大学航空科学与工程学院,北京100083

出　　处：《飞行力学》2005年第1期43-46,共4页Flight Dynamics

摘　　要：探讨了广义预测控制(GPC)方法应用于直升机贴地飞行时地形跟踪控制的可行性,该方法通过最小化预测跟踪误差与预测控制增量的加权二次型性能指标来产生动态系统的最优控制输入。仿真结果表明,广义预测控制方法能够有效地减小跟踪误差,从而实现精确的地形跟踪。Feasibility study on an application of the generalized predictive control(GPC) method to helicopter nap-of-the-earth terrain following control is proposed in this paper. The optimal control input of dynamic systems is generated by minimizing the quadratic cost function which consists of a weighted sum of predicted tracking errors and future control increments. Simulation results show that the tracking errors can be reduced efficiently and accurate terrain following can also be achieved when the generalized predictive control method is introduced.

关 键 词：广义预测控制 直升机 地形跟踪 

分 类 号：V249.122[航空宇航科学与技术—飞行器设计]