摘要
针对具有周期偏移的声信标定位问题,提出了一种广义二阶时延差水声定位模型。将传统二阶时延差拓展至不需要等周期间隔选取定位节点的广义情况,从而进一步提高定位精度;同时,引入松弛算法实现定位节点的最优化,并引入密度聚类算法以提高输入时延野值的鲁棒性。仿真及湖试数据处理结果表明,该模型相对于传统时延差模型或二阶时延差模型具有更高的定位精度。所提模型实现了针对周期漂移声信标的高精度定位,典型使用场景下的定位精度可达到3 m。
A generalized second-order time difference of arrival(GSTDOA)underwater acoustic location model is proposed to solve the problem of the acoustic beacon localization with periodic offset.The traditional second-order time difference of arrival(STDOA)model is extended to the generalized case where the localization node is not required to be selected at equal periodic intervals.Therefore,the localization precision can be further improved.Besides,the RELAX algorithm is introduced to optimize the location node,and the density-based spatial clustering algorithm is introduced to improve the robustness of the input outliers.The simulation data and lake trail data show that the new model has higher localization precision than the traditional time difference of arrival(TDOA)model or the STDOA model.The localization model proposed in this paper realizes high-precision localization for the periodic drift acoustic beacon with the localization precision of 3 m in typical application scenarios.
作者
刘淼
杨卓
万光明
孙思博
付进
LIU Miao;YANG Zhuo;WAN Guangming;SUN Sibo;FU Jin(National Key Laboratory of Underwater Acoustic Technology,Harbin Engineering University,Harbin 150001;Key Laboratory of Marine Information Acquisition and Security(Harbin Engineering University),Ministry of Industry and Information Technology,Harbin 150001;College of Underwater Acoustic Engineering,Harbin Engineering University,Harbin 150001;China Ship Development and Design Center,Wuhan 430064;Beijing Ruizhi Jishu Electronics Co.,Ltd Beijing 100195)
出处
《声学学报》
EI
CAS
CSCD
北大核心
2024年第1期28-37,共10页
Acta Acustica
基金
中国博士后基金特别资助项目(2021T140146)
自然资源部海洋环境探测技术与应用重点实验室开放基金项目(MESTA-2021-A001)
声纳技术重点实验室开放基金项目(6142109KF212203)
水声对抗技术重点实验室开放基金项目(JCKY2022207CH09)资助。
关键词
水声定位
声信标
长基线定位
定位模型
Underwater acoustic location
Acoustic beacon
Long baseline location
Localization model
