机载线性调频脉冲压缩雷达杂波模型的研究  

Research on Clutter Model for Airborne Linear Frequency Modulated Pulse Compression Radar

作　　者：唐斌[1,2,3] 莫磊[2,3] 蔡昌勇[2,3] 李莉[2,3] TANG Bin MO Lei CAI Changyong LI Li(School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan Department of Electronic Engineering, Chengdu Aeronautic Polytechnic, Chengdu 610100, Sichuan The Innovation Base of School-Enterprise Cooperation Aviation Electronic Technology in Sichuan, Chengdu 610100, Sichuan)

机构地区：[1]电子科技大学电子工程学院,四川成都611731 [2]成都航空职业技术学院航空电子工程系,四川成都610100 [3]四川省高校校企联合"航空电子技术"应用技术创新基地,四川成都610100

出　　处：《四川师范大学学报（自然科学版）》2016年第6期929-934,共6页Journal of Sichuan Normal University（Natural Science）

基　　金：国家自然科学基金(U1433129);中国博士后科学基金(2012M511919);四川省教育厅重点科研项目(14ZA0307)

摘　　要：与常规脉冲雷达相比,由于叠加效应,线性调频(LFM)脉冲压缩雷达的杂波信号模型有其特殊性.机载雷达与地面雷达相比,由于载机的运动会引起各个杂波单元回波多普勒频率的不同,其杂波模型更为复杂.针对LFM脉冲压缩信号及机载雷达各自的特性,提出了应用在机载雷达上的LFM脉冲压缩信号杂波模型,并对脉压前后杂波的统计特性进行仿真和分析,仿真结果表明新模型的有效性.Compared to the traditional pulse radar,the clutter statistical model for linear frequency modulated （LFM） pulse compression radar has intrinsic special properties because of the superimposed effect.For the airborne radar,the Doppler frequency of echo signal of each clutter cell is different due to the motion of the platform.Relative to the land-based radar,the statistical clutter model of airborne radar is more complicated.In this paper,towards the characteristics of LFM signal and airborne radar,a statistical clutter model suitable for airborne radar that employs LFM waveforms is presented.The new statistical clutter model is analyzed and simulated before and after pulse compressing.The results prove the effectiveness of the proposed model.

关 键 词：线性调频脉冲压缩雷达 机载雷达 杂波 脉冲压缩 统计特性 

分 类 号：TN957[电子电信—信号与信息处理]