摘要
针对HF定频信道探测杂波背景下的检测问题,提出了一种基于瑞利分布映射的阈值提取方法,并根据多层次阈值提取结果和基于游程码的二值图像标记及图像膨胀填充方法,给出了HF定频信道杂波背景能量层次轮廓(文中统称背景分割方法),为后续的检测研究提供支持.研究表明,本方法在多种HF定频信道探测的杂波背景分割中,均能给出较理想的杂波背景轮廓,对后续的海杂波提取及相关检测有一定的指导作用.
Aiming at the detection problem of HF fixed-frequency channel detection clutter background, a threshold extraction method based Rayleigh distribution map is proposed, and according to the multi-level threshold extraction result and the binary image mark and image expansion filling method based on run-length code, the background energy level profile of HF fixed frequency channel clutter is given, which provides support for subsequent detection research. The research shows that this method can give an ideal clutter background contour in the clutter in the clutter background segmentation of multiple HF fixed-frequency channel detection, which has a certain guiding effect on the subsequent sea clutter extraction and correlation detection.
作者
田德元
黄晓静
李雪
王世凯
杨龙泉
华彩成
TIAN Deyuan;HUANG Xiaojing;LI Xue;WANG Shikai;YANG Longquan;HUA Caicheng(China Research Institute of Radiowave Propagation,Qingdao 266107,China)
出处
《电波科学学报》
EI
CSCD
北大核心
2019年第5期597-602,共6页
Chinese Journal of Radio Science
基金
技术基础(JSHS2016210C009)
关键词
HF定频信道
杂波
背景分割
锐利分布
游程码
HF fixed-frequency channel
clutter map
background-separating
Rayleigh distribution
run-length code
