FADS压力传感器冗余配置研究  

Redundancy Configuration of Pressure Sensors in Flush Airdata Sensing System

作　　者：李清东[1] 王伟[2] 任章[2] 

机构地区：[1]西北工业大学航海学院,陕西西安710072 [2]北京航空航天大学自动化科学与电气工程学院,北京100191

出　　处：《计算机仿真》2008年第11期48-51,105,共5页Computer Simulation

基　　金：空间智能控制技术国防科技重点实验室基金(SIC07030201)

摘　　要：嵌入式大气数据传感器系统通过在飞行器各部位的压力传感器阵进行工作,压力传感器的数量,布局形式将对系统的工作性能产生影响。为衡量冗余配置的性能,提出两项性能指标:可靠性,噪声抑制性能,并分别给出性能指标的具体计算方法。根据现有典型的压力传感器布局类型,分别计算出不同压力传感器数量、不同布局形式的性能指标。通过对性能指标的分析得出结论:可靠性,噪声抑制性能随压力传感器数量增加而增加;放射型布局的噪声抑制性能最优。Flush airdata sensing system（FADS） is an advanced airdata sensing system, in which airdata are inferred from surface pressure sensor arrays. So the number and structural configuration of these sensors have a direct effect on the whole flight control system. This paper proposes two criteria, reliability and noise suppression performance, to evaluate the sensor redundancy configuration. After analyzing the three typical sensor configurations for different aircrafts, the two criteria are calculated. According to the results, two conclusions are given that the reliability and noise suppression performance will be improved with increasing number of the sensors, and the radioactive configuration is optimal for noise suppression.

关 键 词：嵌入式大气数据传感器系统 冗余配置 性能 可靠性 噪声抑制 

分 类 号：V448[航空宇航科学与技术—飞行器设计]