A disturbing target filtering method of a radar target tracking system based on an alpha-beta filter

The invention relates to a disturbing target filtering method of a radar target tracking system based on an alpha-beta filter. Compared with the prior art, the invention solves the defect that the filtering accuracy cannot be guaranteed when a radar tracks an unknown target. The method comprises the following steps: setting of a radar target tracking system; establishing of a virtual noise model;estimation calculation; filtering of a self-tuning alpha-beta filter. The method establishes a virtual noise model by using a method for fitting the virtual noise, and the system with parameter disturbance is transformed into a filtering problem with stable unknown parameters and known noise by using the virtual noise instead of disturbance and dynamic noise of the system itself. Therefore, a self-tuning alpha-beta filter is generated, which is used to filter the unknown targets effectively and ensure the filtering accuracy. 本发明涉及种基于阿尔法贝塔滤波器的雷达目标跟踪系统扰动目标滤波方法，与现有技术相比解决了针对于雷达跟踪未知目标无法保证其滤波精度的缺陷。本发明包括以下步骤：雷达目标跟踪系统的设定；建立虚拟