机载火控雷达慢速目标检测
Slowly moving target detection for airborne fire-control radar
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摘要: 该文研究机载火控雷达对慢速目标的检测方法以及发射信号带宽对慢速目标的检测性能的影响。通常情况下,机载火控雷达地杂波多普勒频率多重模糊,主瓣杂波带宽大,常规处理性能很差。该文结合实际情况。重点分析了机载火控雷达检测地面慢速目标的特点,分析了主瓣杂波这一制约系统检测性能的主要因素,比较了两类空时二维处理方案对慢速目标的检测性能。采用较大的发射带宽是火控雷达的发展方向,雷达发射信号的带宽是影响系统对慢速目标检测性能的重要因素,该文通过理论分析和仿真试验比较了不同带宽情况下系统对慢速目标的检测能力。Abstract: In this paper, slowly moving target detection for airborne fire-control radar and the effect of transmitting bandwidth are discussed. The system of this kind is often characterized by the highly ambiguous Doppler frequency of ground clutter and large Doppler bandwidth of mainbeam clutter. In this case, conventional processing can not give systems good performance of detection. Considering the actual conditions, this paper is focused on the features of detection of slowly moving targets by use of the airborne fire-control radar, and the cascade processing and joint processing are compared. Because using large transmitting bandwidth is todays trend, the effect of bandwidth on slowly moving target detection is also discussed. Finally, simulation results are included to validate the conclusions of the bandwidth effect.
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