天波超视距雷达双站收发同步覆盖模型设计

Design of the Synchro-overcast Model between the Transmitting and Receiving Beam in the Sky-wave OTHR

在高频天波超视距雷达中,采用发射站和接收站双站分置,而发射站和接收站相隔较远,需要对雷达探测区域建立收发站空间同步覆盖的转换模型,使接收站接收波束覆盖区域与发射站发射波束覆盖区域进行同步覆盖。在已知选定的发射波束覆盖区域的情况下,文中通过设计的转换模型计算出接收波束覆盖区域及其接收波束参数,包括波束中心指向、波束宽度、子波束间隔等,从而实现接收波束覆盖区域与发射波束覆盖区域在空间地理位置上同步覆盖,使雷达系统能有效地探测到覆盖区域内的目标。

In the OTHR system which has two detached stations,the distance between transmitting station and receiving station is long. The synchro-overcast of the transmitting and receiving beam is a problem. In the case of a known trasmitting beam coverage area,the synchro-overcast translating model is designed to get the parameters of the area overcastted by the receiving beam such as the centre direction,the beam width,and the interval of the sub-beam,et al. So the synchro-overcast between the transmitting and receiving beam is accomplished,and the target of the coverage area can be effectively detected by the sky-wave OTHR system.