%0 Journal Article
%T Radar LFM signal detection and estimation based on Gabor-Radon transform in low SNR<br>基于Gabor-Radon变换的低信噪比雷达LFM信号检测与估计
%A JIANG Bao-an
%A WAN Qun
%A <br>江宝安
%A 万群
%J 重庆邮电大学学报(自然科学版)
%D 2010
%I 
%X In order to overcome the deficiency of radar linear frequency-modulated (LFM) signal detection and estimation, a method based on Gabor-Radon transformation was proposed. Through computing Gabor transform of the radar echoes, the 2D time-frequency distribution including strong noise and weak target LFM echoes were obtained. Then, using the characteristic that the Radon transform can fast detect beeline and brim and its strong anti-noise characteristic, the weak LFM echoes were detected. The appropriate threshold was set for denoising time-frequency distribution and time-domain waveform by inverse Gabor transform. Simulation result verifies that this method can effectively detect LFM signal in low SNR.
%K LFM<br>Gabor变换
%K Radon变换
%K 去噪
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=5C2694A2E5629ECD6B59D7B28C6937AD&aid=2A986B2FBC9B2093D7562253207BAC5F&yid=140ECF96957D60B2&vid=BC12EA701C895178&iid=CA4FD0336C81A37A&sid=DB817633AA4F79B9&eid=9971A5E270697F23&journal_id=1673-825X&journal_name=重庆邮电大学学报(自然科学版)&referenced_num=1&reference_num=8