航空火控系统软件速率陀螺分析

Analysis on Software Rate Gyroscope of the Airborne Fire-control System

主要研究了航空火控系统软件速率陀螺的组成和工作原理。航空火控系统软件速率陀螺是通过对载机的航姿角进行数值微分和坐标转换等数学方法计算出来载机角速度,对角速度计算工作式、姿态角信号变换电路及计算机处理的软件预编程序等进行分析。采用软件速率陀螺其故障率、可维护性、寿命、体积、重量及功耗等方面大大优于硬件陀螺,从而增加角速度测量的余度,提高其可靠性。

This paper mainly studied the construction and work principle of software rate gyroscope of the aeronautical fire-control system. Software rate gyro worked out the aeroplane angular velocity with the mathematical methods that includes numerical value differential coefficient and coordinate conversion about the aeroplane flight pose angle,then,the paper analyses the caculation formula of angular rate,software precompiler of the signal converter circuit of attitude angle and the computer processing and so on. Software rate gyroscope had more advantages than hardware gyroscope over many aspects,such as breakdown rate,maintenance,life-span,volume,weight,achievement to consume and so on. Thereby the velocity measurement redundancy and its reliability will increase.