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随着现代军事电子技术的迅速发展,来袭目标经常是机动性很强的变速动目标,其目标多普勒随时间变化,常规的空时自适应处理方法对于这类目标的检测效果很差。文中提出了一种基于修正最优处理器的机载变速动目标检测方法。该方法采用修正的导向矢量对多普勒走动项进行补偿,因此能够在目标存在多普勒走动的情况下,获得满意的动目标检测结果。仿真结果表明,该方法能够增强机载雷达对变速动目标的检测能力。
With the rapid development of modern military electronic technology, incoming targets are often highly mobile moving targets, whose target Doppler shifts with time. The conventional space-time adaptive processing method has poor detection performance for such targets . In this paper, a moving target detection method based on modified optimal processor is presented. This method compensates for the Doppler walking term by using the modified steering vector, so the satisfactory moving target detection result can be obtained under the condition of Doppler walking. Simulation results show that this method can enhance the detection ability of airborne radar on variable speed moving targets.