一种水下未知声源定位方法的研究  

Research on Underwater Positioning for Unknown Sound Source

作　　者：张涵[1] 付斌[1] 刘纯虎[1] 连琏[1] 

机构地区：[1]上海交通大学海洋工程国家重点实验室,上海200240

出　　处：《计算机测量与控制》2011年第9期2220-2222,2226,共4页Computer Measurement &Control

基　　金：国家自然科学基金青年基金

摘　　要：随"无线传感器网络"技术快速发展,"基于传感器网络的水下定位系统"被广泛提出;然而,降低节点成本、降低节点功耗成为该技术走向实用化发展的关键所在;通过将"传感器网络技术"和"声波传播衰减原理"相融合,进一步建立新的"基于传感器网络的水下未知声源定位方法"数学模型,并通过实测水下声源与计算机仿真相结合,分析了该模型受反射波、环境噪声和噪声源距离变化影响程度,验证其可行性,提出系统误差修正方法。With the rapid development of Wireless Sensor Networks （WSN）, the underwater positioning system based on WSN was pres- ented. However, the cost and power of nodes restrict the developing of WSN technology. Through the fusion of sensor networks and sound propagation loss, a new mathematical model of underwater unknown sound localization method based on sensor networks is established. Then combining the underwater sound source with computer simulation, how this model is influenced by reflected wave, environmental noise and the location of the sound source is analyzed. A method is presented to correct the constant systematic errors.

关 键 词：未知声源 声波传播衰减 声压 特征频率 

分 类 号：P75[天文地球—海洋科学]