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对比捷联成像导引头和传统成像导引头的特点,指出捷联成像寻的制导技术应用到实际的导弹系统中,需要解决视线角速率提取、数学平台的实现以及制导和控制系统综合设计等问题。给出了各坐标系之间的转换关系,据此推导了捷联成像寻的制导的弹体姿态解耦算法,针对捷联成像导引头的大测量噪声以及系统的非线性,介绍了采用Unscented卡尔曼滤波器估计视线角速率的基本原理,并对捷联成像制导与控制系统进行了分析,给出了制导与控制系统综合设计的思路。
Compared with the characteristics of strapdown imaging seeker and traditional imaging seeker, it is pointed out that the guidance technology of strapdown imaging is applied to the actual missile system, which needs to solve the extraction of line of sight rate, the realization of mathematical platform and the integrated design of guidance and control system And other issues. The conversion relation among the coordinate systems is given. Based on this, the missile body attitude decoupling algorithm based on strapdown imaging is deduced. According to the large measurement noise and the nonlinearity of the strapdown imaging seeker, Unscented Kalman filter to estimate the basic principle of line of sight rate of view, and the strapdown imaging guidance and control system was analyzed, given guidance and control system integrated design ideas.