基于椭圆轨道的空间交会停靠全系数自适应控制方法研究

本文针对线性时变对象，用差分的方法对其离散化，证明了离散化后的对象的系数之和等于1，并利用离散化对象的系数和微分方程的系数之间的关系，计算出离散化后对象的系数收敛值，这也是在时变对象和非线性领域内应用全系数自适应控制理论必须要解决的问题。并基于随圆轨道的空间交会停靠的动力学方程为实际背景，用此方法和PID方法进行了仿真比较，从仿真结果可以看出全系数控制方法的优越性。

SPACE RENDEZVOUS AND BERTHING AND STUDY OF THE CONTROL METHOD

The main idea is that got the discrete equations of the linear time varying system by the difference method.The sum of the coefficient of the discrete system was proved to equal 1.The limit value of the coefficient of the discrete system was calculated making use of the relationship of the linear timevarying system and the discrete system.This is the question that has to be solved using the full coefficient adaptive control method in the time varying field and the non linear field.The result is that the all coefficient adaptive control method is better than the PID control method in the base of the relative motion equation in elliptical orbit.