摘要
在激光水下目标探测中 ,由于海水这一特殊的环境 ,目标反射回来的回波信号中存在大量的散斑噪声 ,不利于目标检测。该文利用局部相关特性建立起一种信号的广义空间相关模型 ,再利用三重相关峰值检测原理和通过对信号的二进小波变换 ,利用小波变换的局部模极大值在不同尺度下的传播特性 ,对目标进行检测和定位。
In the field of laser underwater target detection,there are a lot of speckle niose in the echo signal and it is diffucult to detect the target because of the special surroundings-water. In this paper, a model of general-spatial-correlation is upbuilt using local correlation.Then the target and its position is detected using principle of correlation and wavelet .Experiment proved that it is a efficient means in the field of laser underwater detection.
出处
《计算机仿真》
CSCD
2003年第5期17-19,共3页
Computer Simulation
基金
国防预研基金资助课题 (编号 :98-2 0 0 0 2 32 )
关键词
激光探测
小波分析
水下目标探测
回波信号
Target detection
Correlation detection
Wavelet analysis
Laser exploration
