A Small Size Passive Acoustic Direction Finding System Based on Vector Hydrophone

摘要：

For locating the underwater acoustic source with low cost small equipments, a high precision and small size passive acoustic direction finding technique is proposed. The system employed a pressure differential acoustic vector hydrophone which can take use of the combined information of the pressure and particle velocity of the acoustic source field. Analog signals form the vector hydrophone is sampled and sent to a digital signal processor (DSP), and the calculated direction can be get from an external interface unite. The results from test at tank demonstrated that the direction finding system is reliable and easy to use, has a high precision with the azimuth angle root mean square error less than 3 degrees. This technique can be used in small size underwater orient systems.

关键词： underwater acoustic vector hydrophone passive direction finding

作者: LI Jinming ZHAO Junwei HAN Yinhai

作者单位: College of Marine, Northwestern Polytechnical University, Xian, 710072

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）