%0 Journal Article
%T A Target Detection Algorithm of UWB SAR Based on Connectivity Analysis<br>一种基于连通分析的UWB SAR目标检测算法
%A YANG Zhi-guo
%A HUANG Xiao-tao
%A ZHOU Zhi-min
%A <br>杨志国
%A 黄晓涛
%A 周智敏
%J 中国图象图形学报
%D 2008
%I 
%X Urtra-wide band(UWB)synthetic aperture radar(SAR)is widely used to explore the foliage-concealed targets for its better penetrability.But no systemic and integrated detection algorithm is presented for UWB SAR detection.Most of research institutes follow the three-stage detection flow developed by Lincoln laboratory to detect the foliage-concealed targets in UWB SAR images.This current detection algorithm performs excellently when it is used to detect and recognize targets based on high-frequency,high-resolution and fully polarimetric SAR data.But there are many problems when it is used to detect the foliage-concealed targets in UWB SAR images.The question is analyzed when the current algorithm is used to detect the targets of UWB SAR,and a new detection algorithm is presented in the paper.The new algorithm decreases the requirements of detection condition by small slip-window average,low-threshold constant false alarm rate(CFAR)detection and connectivity analysis.It has the good applicability and steadiness.The detection results of the current detection algorithm and the proposed new algorithm for foliage-concealed targets in three UWB SAR images are given in the end of the paper,and they testify the validity of the new detection algorithm in the foliage-concealed target detection of UWB SAR.
%K ultra-wide band(UWB)SAR
%K target detection
%K detection probability
%K false alarm rate
%K small slipe-window average
%K low-threshold constant false alarm rate(CFAR)
%K connectivity analysis<br>超宽带合成孔径雷达
%K 目标检测
%K 检测概率
%K 虚警概率
%K 小滑窗平均
%K 低门限恒虚警
%K 连通分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=728C72B7BAD7828BD4C22868F5DF21D1&yid=67289AFF6305E306&vid=FC0714F8D2EB605D&iid=DF92D298D3FF1E6E&sid=A2484BFF38B01808&eid=29AE54A8F28A81D3&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=0&reference_num=12