基于综合指标的最优冗余陀螺配置确定方法

陀螺是航天器控制系统中的关键姿态敏感器，其主要采取冗余措施进行配置。针对航天器控制系统设计中如何进行陀螺冗余配置的问题，提出了一种确定最优冗余陀螺配置的方法，该方法综合考虑了系统的可靠性、精度、成本代价等综合指标。首先，以工程中普遍采用的陀螺斜置式为对象，系统性给出了陀螺斜置式的安装结构，并以测量误差最小为目标确定出确定安装数目下的最优陀螺冗余安装结构。其次，结合实际工程经验对陀螺冗余配置的综合性能指标进行详细系统的分析。然后，利用优化评价方法以综合指标为基础对不同安装数目下的陀螺冗余安装结构进行综合评价，确定出陀螺冗余配置的最优安装数目，即最优冗余陀螺配置。最后，利用该方法对实际工程中的斜置式陀螺冗余配置进行分析和计算。结果表明，当陀螺的安装数目为7时为最优冗余配置，该结论对实际工程具有理论指导作用。

Method for Determining Gyroscope Optimal Redundant Configuration Based on Comprehensive Index

The gyroscope is a key attitude sensor in the spacecraft control system, which is mainly configured with redundant measures. Aiming at the problem of how to implement gyroscope redundant configuration in the design of spacecraft control system, a method about determines gyroscope optimal redundant configuration based on a comprehensive index is proposed, which takes into account the system reliability, accuracy, cost and other comprehensive indexes. Firstly, taking the gyroscope oblique installation commonly used in engineering as an example, the gyroscope installation structure matrix is systematically given, and the optimal redundant installation structure of the gyroscope under a certain number of installations is determined with the minimum measurement error as the target. Secondly, combined with the actual engineering experience, the comprehensive performance indicators of the gyroscope redundant configuration are systematically analyzed. Thirdly, the optimization evaluation method is used to comprehensively evaluate the gyroscope redundant installation structure under different installation numbers based on the comprehensive index, so as to determine the optimal redundant installation number of the gyroscope, that is, the gyroscope optimal redundancy configuration. Finally, combined with the actual engineering, this method is used to analyze and calculate the redundant configuration of the inclined gyroscope. The results show that it is the optimal redundancy configuration when the number of gyroscope installations is seven, this conclusion has theoretical guidance for engineering practice.