摘要
无人机具有低空飞行、慢速、小RCS的“低、慢、小”特点,其在杂波区中的有效检测仍是亟待解决的难题。本文给出了一种高精度、低复杂度的测速方法,克服了频道选大法和质心法测量精度差的问题。同时采用长、短脉冲交替的波形,显著改善了补盲波形的速度分辨力,提升了对小型无人机的检测能力。仿真结果和实测数据验证了本文方法的可行性和有效性。
The effective detection of unmanned aerial vehicles(UAVs)in clutter is still challenging due to their characteristics of low-altitude flight,low speed,and small RCS.A novel speed measurement method with low complexity and high precision is proposed.The method solves the poor precision problem of the greatest channel selection method and centroid method.In addition,a waveform design which alternates long pulses and short pluses is employed,which significantly improves the speed resolution of the short-range detection waveform and improves the detection capability in terms of small UAVs.The simulation results and measured data prove the feasibility and effectiveness of the proposed method.
作者
杨雪亚
沈显照
王贤翔
YANG Xueya;SHEN Xianzhao;WANG Xianxiang(No.38 Research Institute of CETC,Hefei 230088;Key Laboratory of Aperture Array and Space Application,Hefei 230088)
出处
《火控雷达技术》
2022年第3期36-39,共4页
Fire Control Radar Technology
关键词
低空
无人机
波形设计
高精度测速
low altitude
UAV
waveform design
high-precision speed measurement
