基于CLEAN算法的非连续谱线性调频中断波信号处理  

Signal processing for discontinuous spectra FMICW based on CLEAN algorithm

作　　者：王勤[1] 万显荣[1] 杨子杰[1] 熊俊志[1] 

机构地区：[1]武汉大学电子信息学院,湖北武汉430079

出　　处：《电波科学学报》2009年第2期243-248,共6页Chinese Journal of Radio Science

基　　金：国家高科技发展计划资助项目(No.2006AA09A303);国家自然科学基金资助项目(No.60401003);国家高科技发展计划资助项目(No.2009AA12Z125)

摘　　要：高频地波雷达工作在电磁频谱密集的短波频段,为了提高雷达抗干扰性能,可利用若干个干净频段合成雷达的有效带宽。研究了一种非连续谱线性调频中断雷达波形,提出了针对这种雷达波形的二维信号处理方案。仿真结果表明:该方案能有效地抑制距离旁瓣,提高回波信号检测目标的动态范围。It is often difficult to find appropriate clear operating channels in the comparatively limited and congested high-frequency band. In order to improve the performance of radar for anti-jamming, the synthesized wide band waveform is used in this paper. The paper analyzes a Frequency Modulated Interrupted Wave （FMICW） radar signal with discontinuous spectra and proposes a velocity-range processing method. Simulation results show that the new method can suppress range sidelobes effectively, and achieve better range resolution ability and detection for weak echoes.

关 键 词：高频雷达 非连续谱 线性调频中断波 旁瓣抑制 CLEAN算法 

分 类 号：TN957.51[电子电信—信号与信息处理]