离散相似法在卫星姿态控制系统设计和数字仿真中的应用

An application of Discrete Similarity Method in the Design and Digital Simulation for Satellite Attitude Control System

本文叙述了离散相似法的基本原理，在此基础上给出了单输入－单输出系统的各种典型子块的系数计算公式，在典型子块的基础上构成晃动动力学、帆板挠性动力学、双二阶晃动和帆板振动滤波器动力学的复合子块，以及各种非线性复合子块。最后给出了某卫星三轴姿态控制系统的数字仿真结果。

Based on the basic concept of Discrete Similarity Method descirbed in this paper, the coefficients of expressions of typical blocks for single input/single output systems have been derived. Complex blocks such as sloshing dynamics, flexible array dynamics, double two-order sloshing and vibration filter dynamics and various non-linear blocks can be constructed by employing a combination of typical blocks. Finally, the digital simulation for a three-axis stabilized attitude control system of a satellite has been given.