摘要
利用单个矢量水听器可以测出目标声源的方位,提出了一种利用单矢量水听器基于互谱测向的多目标分辨方法。利用互谱测向方法计算出测量过程中各个目标的方位变化轨迹,画出方位历程图,根据方位历程图选择目标方位相差比较大的时刻,根据方位信息提取出各自目标声源的特征谱;只要目标声源的特征谱不重合,就可以分辨出多个目标。本文结合仿真说明了分辨2个目标的方法和计算过程,利用本方法可以分辨2个或更多目标。
Azimuth of target sound source can be computed by single vector hydrophone,this paper bring forward a method of identifying multiple targets by a single vector hydrophone based on the cross-spectrum goniometry.First,computed the azimuth locus of each targets by cross-spectrum goniometry,paint the azimuth course picture,then select the time when azimuth difference of each targets,distill the characteristic spectrum of every targets used the azimuth information.This method can be effective if only the characteristic spectrum of each targets don＇t coincidence.This paper introduced the computed process of identified two targets by combine emulator,identify more targets was possible used this method.
出处
《舰船科学技术》
2009年第10期18-20,共3页
Ship Science and Technology
关键词
矢量水听器
互谱测向
目标方位估计
目标分辨
vector hydrophone
cross-spectrum goniometry
DOA estimation
identifying target
