摘要
为弥补聚焦波束形成声图测量方法定位精度受限的不足,提出通过修改声图测量网格及测量频率来实现舰船目标近距离精确定位的方法.海试结果表明,在舰船目标距离直线阵400 m内,定位误差可小于5 m.
To make up the deficiencies of location precision limited with focused beam-forming method for underwater acoustic image measure,an approach of changing measure gridding and frequency to realize the pinpoint of warship target in near field was presented.Tests show that the location error is less than 5 meters when the distance between warship and horizon line-array is within 400 meters.
出处
《大连海事大学学报》
CAS
CSCD
北大核心
2010年第2期91-94,99,共5页
Journal of Dalian Maritime University
基金
国防科技重点实验室基金资助项目(9410C260103080C26)
关键词
舰船目标
近距离定位
水平直线阵
聚焦波束
声图
网格
warship target
near field location
horizon line-array
focused beam-forming
underwater acoustic image
gridding
