被动传感器系统的快速航迹起始算法

Fast Track Initiation Approach for Passive Sensor System

针对传统航迹起始算法在纯方位目标跟踪应用中存在的问题,提出了一种基于被动式单传感器系统的快速航迹起始算法。算法通过分析二维纯方位目标运动的特点设定威胁目标的筛选规则,利用改进的启发式算法在最短时间内对威胁目标进行航迹起始。再将基于逻辑的方法应用到纯方位坐标系下,进行一般目标的航迹起始。通过这两种方法在纯方位目标跟踪系统中的联合运用,不仅使目标航迹得到有效确认,而且为系统建立目标威胁等级提供了基础。仿真和实际系统的应用表明了此算法的有效性和实用性。

Aiming at the existing problems in the applications of traditional track initiation approaches for bearing-only target tracking, a fast track initiation approach for single passive sensor system is proposed. In this approach, the rule of screening out threatening target is set through analysis of the target motion characteristics in polar coordinates. And the track initiation of threatening target is implemented in the shortest time based on a modified heuristic approach. Then, other target tracks are initialized based on a logic-based approach in polar coordinates. The cooperation of the two approaches makes track initiation more effective which provides a base for determining the threatening level of target in bearing-only target tracking system. The application of the proposed approach in a simulation and engineering system indicates its effectiveness and practicability.