CAJ | 학술논문

预警机雷达为了完成在地物杂波背景下的目标探测，通常采用脉冲多普勒（pulse Doppler，PD）体制，而多普勒盲区是 PD 体制雷达的固有问题。在分析地物杂波特性和多普勒盲区形成机理的基础上，提出了一种基于多普勒盲区的低空突防航线规划方法，并给出了固定时间步长的搜索方法对该规划进行求解。沿此航线的战机利用多普勒盲区可实现相对于预警机雷达的“隐身”，而低空飞行又可有效规避地面雷达的探测，因此该航线可以大大提高战机突防的成功率。仿真实验结果验证了本文提出的基于多普勒盲区的低空突防航线规划方法的正确性及有效性。
예경궤뢰체위료완성재지물잡파배경하적목표탐측，통상채용맥충다보륵（pulse Doppler，PD）체제，이다보륵맹구시 PD 체제뢰체적고유문제。재분석지물잡파특성화다보륵맹구형성궤리적기출상，제출료일충기우다보륵맹구적저공돌방항선규화방법，병급출료고정시간보장적수색방법대해규화진행구해。연차항선적전궤이용다보륵맹구가실현상대우예경궤뢰체적“은신”，이저공비행우가유효규피지면뢰체적탐측，인차해항선가이대대제고전궤돌방적성공솔。방진실험결과험증료본문제출적기우다보륵맹구적저공돌방항선규화방법적정학성급유효성。
To complete target detection under the background of surface clutter,airborne early warning (AEW)radar commonly adopts the pulse Doppler (PD)system.However,the problem about the Doppler blind zone cannot be ignored.Based on the analysis of the character of surface clutter and the formation mechanism of the Doppler blind zone,a model for flight planning of low-altitude penetration is established.A fixed-time-step searching method is adopted to solve the model.On the route the fighter is invisible relative to the AEW radar using the Doppler blind zone.Moreover,low-altitude flight can avoid the detection of the radar above ground. Therefore,the route greatly increases the success rate of the fighter’s penetration.The simulation results dem-onstrate the correctness and effectiveness of the developed method for flight planning of low-altitude penetration based on the Doppler blind zone.