参数鲁棒线性二次型高斯（ＰＲＬＱＧ）设计方法，利用基于内反馈回路（ＩＦＬ）的Ｉ／Ｏ分解对参数建模，针对参数变化的结构选取合适的ＬＱＧ权阵实现参数鲁棒控制。本文着重阐述实现系统设计的方法和步骤，并通过一个有代表性的例子展示其应用过程，仿真结果是令人满意的。最后讨论了ＰＲＬＱＧ算法在飞船姿态控制中的应用。 Parameter robust linear quadratic Gaussian (PRLQG) design method, the parameters are modeled by the I / O decomposition based on the internal feedback loop (IFL), and the robust control of the parameters is selected by choosing appropriate LQG weight matrix for the structure of the parameter variation. This article focuses on the methods and steps to achieve the system design, and through a representative example of its application process, the simulation results are satisfactory. Finally, the application of PRLQG algorithm in spacecraft attitude control is discussed.