载机姿态变化对目标检测性能的影响分析  

Influence of Aircraft Attitude Vibration on Target Detection Performance

作　　者：高旭[1] 韩伟[1] 何彦杰[1] 

机构地区：[1]中国人民解放军95980部队

出　　处：《电光与控制》2015年第8期18-22,共5页Electronics Optics & Control

基　　金：国家自然科学基金(51309232)

摘　　要：机载预警雷达姿态变化对探测性能会产生不利影响。针对刚体模型条件下机载预警雷达载机的姿态变化问题,建立了载机偏航和横滚模型,分析了两种姿态改变对杂波谱和目标回波功率的影响,在采用单通道信号处理的基础上,通过仿真实验给出了两种姿态共同影响下的目标检测概率。结果表明:偏航和横滚都使检测概率下降,横滚对目标检测概率的影响比偏航更为明显,当姿态变化角超过一定值时,雷达失去目标检测能力。Attitude vibration of airborne early warning radar has an adverse impact on target detection performance. Considering the attitude vibration of aircraft for installing airborne early warning radar under rigid body model condition, the aircraft crabbing and rolling models are set up, and then the effects of these two kinds of attitude vibration on clutter spectrum and target echo power is analyzed. Finally, based on single-channel signal processing, the target detection probability under the influence of both crabbing and rolling is obtained by simulation. The results show that： 1） Both crabbing and rolling reduce the detection probability, and the rolling having a more significant influence than crabbing; and 2） When the vibration angle of attitude exceeds a certain value, the radar will lose the capability of target detection.

关 键 词：机载预警雷达 姿态变化 目标检测 地杂波 检测性能 

分 类 号：V271.4[航空宇航科学与技术—飞行器设计] TN957[电子电信—信号与信息处理]