一种全空域目标正交数据实时提取方法

A real-time orthogonal data extraction method for all airspace targets

针对俯仰同时多波束三坐标雷达实时多目标分类识别需求,提出一种正交数据缓存和提取方法。在信息处理机中,依据目标所在距离段、与目标距离和最大速度/最大高度边界条件相关联的方位/仰角波束覆盖范围,设计缓存空域,避免全程/全方位/全仰角大量无效数据缓存和大量数据传输;完成航迹滤波后,以目标点迹为中心,分别根据目标距离段、距离单元幅度分布特征确定俯仰波门范围和目标距离波门,实现从缓存中精准提取目标的相关正交数据,降低传输给目标分类识别分机的数据量;最后通过试验验证了该方法的有效性。

An orthogonal data cache and extraction method is proposed according to the real-time multi-target classification and recognition requirements of the elevation simultaneous multi-beam 3D radar.In the information processor,the buffer space is designed based on the range segment of the target and the azimuth/elevation beam coverage associated with the target range and the maximum velocity/height boundary condition to avoid the buffering of a large amount of invalid data in full range/all directions/full elevation and large data transfer.After the track filtering is completed,the elevation gate range and the target range gate are determined respectively according to the target range segment and the distribution characteristics of the range unit amplitudes with the target plots as the center,extracting the relevant orthogonal data of the targets accurately extracted from the cache,and reducing the amount of data transmitted to the target classification and recognition unit.Finally,the method is verified to be effective through the test.