基于航迹检验的雷达检测前跟踪新算法

A New Track-Before-Detect Algorithm Based on Track Detection

针对在低信噪比环境下雷达目标检测的问题,提出了一种基于航迹检验的检测前跟踪方法.该方法利用航迹检验和能量积累检测双重检测方法,在目标运动信息未知的情况下,在多脉冲回波间估计目标运动参数,获取目标航迹并沿着目标航迹的进行非相参积累,有效地积累目标回波能量,改善了积累后的信噪比,提高了检测性能.通过仿真表明,在目标匀速和匀加速运动时,该方法都具有较好的检测性能,与其它检测前跟踪方法相比,该方法鲁棒性更好.

In order to solve the detection problem in the low signal-to-noise environment, a new track-before-detect （TBD） algorithm based on track detection is proposed. It employed both the track detection and energy integration detection methods. In the case of unknown target motion, the non-coherent integration could be accomplished effectively, which improves the signal to noise ratio and makes the detection performance better. Simulation result shows that whether in target constant motion or uniformly accelerated motion, the new method is more robust compared with other detection methods.