一种跟踪信息辅助的认知目标检测方法

近年来认知雷达技术取得了快速发展,如何利用已获取的感知信息提高雷达探测性能成为研究热点.针对跟踪阶段的认知目标检测问题,提出一种跟踪信息辅助的认知目标检测方法,旨在利用跟踪信息提高目标检测性能和跟踪性能.对于处于跟踪阶段的目标,目标真实性已被充分证实,此时可以将跟踪信息传递至检测模块,以期望获得探测性能提升.本文认知检...

Cognitive target detection method based on tracking information

In recent years, cognitive radar techniques have been developed quickly. How to improve radar detection performance basing on the obtained sensing information has become hot topic. A cognitive target detection method during tracking stage is presented based on tracking information, in order to improve target detection and tracking performance. For the target during tracking stage, the target existence has been proved, therefore the tracking information can be sent to target detector to expect an improved detection performance. As to the proposed cognitive detection method, firstly, target motion characteristics are extracted from tracking information, and a predicted region is established for the next instant; secondly, detection thresholds in the predicted region are adjusted by using target prediction probability information, under the Bayesian criterion and constant false track rate; finally, cognitive target detection is accomplished. Numerical results indicate that the cognitive target detection method can significantly improve target detection and tracking performance.