多波束声纳测深瞬间到达角和旅行时的精确确定

¹ 国家海洋局海底科学重点实验室,杭州市保亻叔北路36号,310012;² 山东科技大学地球信息科学与工程学院,青岛市开发区前湾港路579号,266510;³ 武汉大学测绘学院,武汉市珞喻路129号,430079;⁴ 长江水利委员会长江口水文水资源勘测局,江苏省太仓市浏河镇,215431

基金项目: 山东省重点实验室开放研究基金资助项目(SD040212);国家自然科学基金资助项目(40506023)

详细信息

Accurately Determining DOA and TOA in Multi-beam Sonar Sounding

¹ Laboratory of Submarine Geosciences of State Oceanic Administration,36 North Baoshu Road,Hangzhou 310012,China;² Geoinformation Science and Engeering College,Shandong University of Science and Technology, 579 Qianwangang Road,Qingdao Economic and Technical Development Area,Qingdao 266510,China;³ School of Geodesy and Geomatics,Wuhan University,129 Luoyu Road,Wuhan 430079,China;⁴ The Survey Bureau of Hydrology and Water Resources of Changjiang Estuary,Changjiang Water Resources Commission,Taicang 215431,China

Funds: 山东省重点实验室开放研究基金资助项目(SD040212);国家自然科学基金资助项目(40506023)

摘要: 详细论述了多波束测深系统的幅度检测方法,指出了传统的BDI和WMT检测方法的缺点,提出了回波最大强度优先法。它首先采用基于中值滤波、局部方差检测和小波分析相结合的方法来定位异常数据,然后将一个发射接收周期的幅度数据看作二维信号,从图像处理角度来分割高峰值区,从而得到高精度、可靠的DOA和TOA,并使用模拟数据进行了分析,证明了算法的优越性。
- 多波束声纳 /
- 到达角 /
- 旅行时
Abstract: This paper introduces the detecting echo methods for multi-beam sonar.It describes the disadvantage of BDI and WMT detecting methods.So Maximal Amplitude Determining Echo method is presented.It adopts median filter and local variance estimation and wavelet analysis to remove outliers and noises,then one ping data are considered as planar signals and are processed through image processing methods.After high amplitude data have been segmented,accurate and robust DOA and TOA are obtained.The simulated data are analyzed in this paper,and good results are verified.
- multi-beam sonar /
- direction of arrivals /
- time of arrivals