基于绝对多普勒的多预警机协同补盲方法

Method of covering the blind zone with multi-AEW cooperation based on absolute Doppler

为了实现对责任区全区域、大视角来袭目标的严密预警探测,提出一种基于绝对多普勒的多预警机协同补盲方法。首先,分析目标径向速度的影响因素及其变化规律,推导绝对多普勒的数学表达式,将影响多普勒盲区的复杂多变因素优化调整为目标速度及目标与预警机间的相对位置。其次,运用仿真建模方法,基于绝对多普勒杂波凹口表达式,设计一种以检测点数表征的单预警机多普勒盲区地图绘制方法。然后,在“使得协同中的各预警机或至少有一架预警机的径向速度盲区不落在或尽量少落在重点方向上”的准则牵引下,提出一种图上作业式的多预警机相对位置关系解算方法,完成多预警机的协同部署。最后,通过双预警机圆环拱卫阵形的协同部署实验,验证该方法的有效性和实用性。

In order to detect the all-range and large degree threats coming from the area of responsibility rigorously,the method of covering the blind zone with multi-airborne early warning(AEW)cooperation is studied based on the absolute Doppler.Firstly,the cause and changing rules of the target radial velocity are analyzed,the mathematical expression of the absolute Doppler is deduced,which can adapt the thesis factor relating with the Doppler blind zone to the distance between the absolute speed of the target and the location of AEW and target.Secondly,the modelling and simulation method is employed,and the Doppler blind zone map that is characterized with the number of times of detection is designed based on the expression of the clutter concave,a method of plotting the positional relationship on the map for multi-AEW at the principle which can guarantee the radial velocity blind area not falling or as little as possible falling on the important orientation area,and the collaborated deployment is completed.The simulation verified the practicability and effectiveness of the method through the cooperation examination of the two-AEWs employing the circle formation.