飞行器角速度测试的方法研究  

Research on the Method of Angle-Velocity Test of Aircraft

作　　者：才睿[1] 郭昱[1] 薛云朝[1] 吴宏斌[1] 旷山[1] 

机构地区：[1]北京航天长征飞行器研究所,北京100076

出　　处：《计算机测量与控制》2008年第12期1907-1908,1918,共3页Computer Measurement &Control

摘　　要：瞬时角速度是飞行器研制过程中很重要的参数之一,瞬时角速度决定了飞行器能否稳定飞行;通过在飞行器内安装地磁式角速度测试系统可以得到飞行器的平均角速度,在实际的角速度测试曲线的基础上通过MATLAB编程来求解飞行器的瞬时角速度;通过建立地磁式角速度测试系统的物理模型,得出了非线性曲线拟合的数学模型,运用优化设立理论。设计了最小二乘算法,并用MATLAB来具体实现;应用程序处理实际的测试曲线,得到了时间-瞬时角速度曲线;通过试验应用,该方法可以准确得到瞬时角速度。The instantaneous angle - velocity is an important parameter during the developing aircraft, which determined whether the flight of aircraft is steady or not. Through the geomagnetic angle - velocity test system, which was installed on the aircraft, the average angle - velocity is gained. The method is introduced for evaluating the instantaneous angle velocity by taking advantage of the software MATLAB according to the experimental angle velocity curve. Based on the physical modeling of the geomagnetic angle - velocity test system, the nonlinear curve fit model is presented. After the above work, the theory of optimization is exerted; the least squares algorithms are put forward, which is used of MATLAB. Through the process of the experimental data with program, the figure of and time - instantaneous angle - velocity was plotted. The instantaneous angle - velocity was found by using this method and the experiment was proved.

关 键 词：角速度 非线性曲线拟合 

分 类 号：TP393.09[自动化与计算机技术—计算机应用技术]