摘要
水下混响和发射信号的频谱具有一致性,常规的混响背景下的目标检测方法难以有效消除混响的影响。文中给出了一种基于Wigner-Hough变换的抗混响方法,利用混响和信号的时域频域特性的联合分布来实现混响干扰中回波信号的检测。仿真结果表明,该方法即使在低信混比的情况下,能够有效进行目标检测。
A method based on Wigner-Hough Transform is given,which can obtains the target detection in reverberation by using the time-frequency distribution of reverberation and transmission signal.Simulation results show that the method can detect target effectually even in the case of low signal-to-reverberation ratio.
出处
《青岛大学学报（自然科学版）》
CAS
2010年第4期69-73,共5页
Journal of Qingdao University(Natural Science Edition)
关键词
混响
HOUGH变换
目标检测
reverberation
Hough transform
target detection
