For the inertial navigation system with model errors, there exists a large error in estimating a state using conventional Kalman filter, and it can even make the filter diverging.
对于有模型误差的惯导系统，采用常规卡尔曼滤波会导致较大的状态估计误差，甚至使滤波器发散。
2
In laser control and guide system, diverging Angle of laser beam is an important parameter.
激光末端制导武器系统中，激光照射指示器出射激光的束散角是一个重要的参数。
3
Imagery quality for compound optical system is discussed, it is give by determined compound optical system method of covering or diverging quality.