地空导弹视线指令制导系统目标跟踪装置模型研究

A Study of Target Tracker for Air-to-Surface Missile LOS Guidance System

文中对地空导弹视线指令制导系统中的典型目标跟踪问题进行了研究,为了实现高精度的跟踪,将目标跟踪装置设计成二阶无静差系统。首先根据目标视线角运动和跟踪精度指标进行初步设计。其次,考虑到雷达接收机中的热噪声对雷达天线颤动的影响,根据等效噪声带宽进行动态设计,最后通过时域仿真微调设计参数值以获得较好的动态品质。

In this paper, a typical target tracking problem of air-to-surface LOS guidance system is studied. To obtain a high tracking accuracy, the target tracker should be designed as a 2nd order zero-static-error system. Firstly, a basic design is finished according to the LOS angular motion and tracking accuracy specification. Secondly, considering the effect of thermal noise in radar receiver, using the equivalent noise bandwidth, a dynamic design is developed. Finally, in time domain, a good dynamic response is obtained while some parameters are adjusted.