载机横滚对雷达目标检测性能的影响分析  

Analysis of Influence of the Aircraft Rolling on the Target Detection Performance of Radar

作　　者：韩伟 肖卉[2] 何彦杰 

机构地区：[1]解放军95980部队 [2]空军预警学院空天基预警监视装备系

出　　处：《现代雷达》2015年第5期12-16,46,共6页Modern Radar

基　　金：国家自然科学基金资助项目(No.51309232)

摘　　要：机载预警雷达载机在飞行过程中容易发生横滚,会对雷达的检测性能产生一定的影响。针对刚体模型条件下载有正侧面天线阵的机载预警雷达载机的姿态变化问题,建立了横滚的数学模型,分析了载机横滚对杂波谱和目标回波功率的影响,通过仿真实验给出了在单通道信号处理条件下横滚对不同速度目标的检测概率。结果表明:横滚会使目标检测概率明显下降,这对载机的横滚角提出了一定的限制。When aircraft of ariborne warning early performs flight, its rolling may occurs easily, which may exert some influences on detection performance of radar. Considering aircraft rolling of airborne early warning radar with side looking antenna array based on rigid body model, the mathematic model of aircraft rolling is set up, and then the effects of rolling on clutter power spectrum and target echo power is analyzed. Finally, on the condition of single-channel signal processing, the detection probability of targets with different velocity is gained on the influence of rolling. Simulation results show that rolling make detection probability decrease evi- dently, which restricts rolling angle of aircraft within a certain value.

关 键 词：机载预警雷达 载机横滚 杂波谱 目标回波功率 检测概率 

分 类 号：TN959.73[电子电信—信号与信息处理]