%0 Journal Article
%T RANGE SUPER-RESOLUTION AT LOW SNR VIA INTERPULSE FREQUENCY HOPPING AND SIGNAL ENHANCEMENT<br>利用脉间跳频和信号增强技术实现低信噪比下雷达距离超分辨
%A Liu Sheng
%A Xiang Jingcheng
%A <br>刘晟
%A 向敬成
%J 电子与信息学报
%D 1998
%I 
%X For linear and non-linear frequency modulation (LFM/NLFM) signals with large time-bandwidth product (TB), radar super-resolution in range domain at low SNR is investigated. A novel signal enhancement algorithm based on FFT for LFM/NLFM signals used for preprocessing, which significantly raises the effective signal-to-noise ratio (SNR), is presented. By use of decorrelation between echoes of different targets achieved by pulse-to-pulse carrier frequency hopping, a variety of approaches are suggested to further lower the SNR threshold for range super- resolution. Monte-Carlo simulation results are presented to illustrate the improved performance.
%K Range super-resolution
%K Signal enhancement
%K Interpulse frequency hopping
%K Linear/Nonlinear frequency modulation (LFM/NLFM)<br>距离超分辨
%K 信号增强
%K 脉间跳频
%K 线性调频
%K 非线性调频
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=B903D1525C3853A4670E9D326B332DBB&yid=8CAA3A429E3EA654&vid=A04140E723CB732E&iid=E158A972A605785F&sid=A48DE16C07AAAB06&eid=30F3EEEA29E34EE7&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=10