雷达目标特征数据库在雷达组网仿真上的应用

The Application of Radar Target Characteristic Database on The Simulation of Radar Network

传统雷达组网仿真中,认为目标为点目标,目标的RCS(Radar Cross Section)是一个常数;实际上目标的RCS是随雷达频率、目标相对雷达姿态变化的函数。该文通过对复杂雷达目标进行电磁建模,计算其在各姿态和各频点的RCS数据,把计算结果存储在数据库中建立雷达目标特征数据库。建立了雷达组网仿真系统,系统由主控计算机、雷达目标特征数据库、若干雷达站组成。仿真结果表明:利用雷达目标特征数据库获得雷达在每个时刻观察的RCS比传统的把飞行器RCS当成常数,进行雷达组网仿真,仿真结果更接近实际的情况;通过多个雷达组成雷达网进行数据融合共同探测目标,可以大大提高雷达对目标的检测概率。

Traditionally, in the simulation of radar network, the aircraft is regarded as a point, whose RCS（Radar Cross Section） is constant; In fact, the RCS is a function of the frequency of radar and the angle between the aircraft and radar. Radar targets characteristic database is created by creating the electromagnetic model of targets, calculating the RCS of the angles and frequencies, storing the data in a database. The radar network simulation system is established composed of center computer, radar targets characteristic database, and several radars. The simulation results indicate that： the results of simulation in which the RCS of aircraft is changed, using the target characteristic database, than fixed, are more creditable; radar network increases the detected probability of radars greatly.