机载预警雷达采用脉冲多普勒体制，具有良好的低空探测性能，但其固有的多普勒盲区会使目标无法被检测，从而造成目标航迹中断和重起批。针对多普勒盲区条件下的目标跟踪问题，研究了一种基于多普勒预测的目标航迹优化方法。首先分析了多普勒盲区产生的原因，然后在传统自适应航迹暂消准则的基础上，结合扩展卡尔曼滤波处理后的点迹预测，提出了一种优化的暂消准则，并引入航迹质量分数来评估航迹维持能力。最后通过仿真实验验证了所提出准则的可行性和有效性。%Airborne early warning radars, which employ the pulse Doppler (PD) system, have good detection performance on low altitude detection, while its inherent Doppler blind zone can result in the targets in this zone being un-detected, which accordingly causes the target track to be terminated and of restarting batch. Aimed at the target tracking in Doppler blind zone, a method of target track optimization based on Doppler prediction is proposed in this paper. First, the reasons why the Doppler blind zone exists are analyzed, next, on the basis of traditional adaptive rule of track temporary disappearance, an optimized rule of temporary disappearance is proposed by combining with the plot prediction after the extended Kalman filter (EKF) processing, and then the ability of track maintenance is assessed by introducing a track quality score, and finally, the feasibility of this proposed rule are verified by simulation and experiments .
展开▼
