Collaborative Research: Data Communication via Particle Velocity Channels-A Paradigm Shift in Underwater Acoustic Communication

合作研究：通过粒子速度通道进行数据通信——水声通信的范式转变

• 批准号: 0830204
• 负责人: Mohsen Badiey
• 金额: $ 15.89万
• 依托单位: University of Delaware
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-01 至 2012-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0830204&HistoricalAwards=false
• 关键词: Collaborative; Research; Data; Communication; via

Abstract_____________________________________________________________________________________Collaborative Research: Data Communication via Particle Velocity Channels - A Paradigm Shift in Underwater Acoustic CommunicationOver 75% of the earth?s surface is covered with water, with many resources upon which human life depends. High speed wireless data communication with acoustic waves among underwater sensors, deepwater moored instruments, autonomous underwater vehicles, and surface vessels is of crucial importance in many applications of national interest. Examples include offshore oil industry, environmental and ocean monitoring to predict natural disasters such as hurricanes, and so on. However, the underwater acoustic channel is a complex and highly bandlimited environment, and the achievable data rates by current systems are much smaller than the needs.The core novel idea of the research is to transform the foundation of underwater acoustic communication, by communicating over the unexplored degrees of freedom of the acoustic field, i.e., the acoustic particle velocity channels. Over the past few decades, only the pressure channel of the acoustic field has been used for underwater communication. The key concept in this research is to take advantage of the vector components of the acoustic field, such as the three components of acoustic particle velocity. Particle velocity channels are promising for high speed communication, due to their possibly smaller delay spreads. The small size of particle velocity transceivers is another advantage over large pressure-only arrays traditionally used for underwater communication. In this research the investigators develop a cohesive framework for high rate underwater communication via acoustic particle velocity channels. The research objectives fall into two closely-related categories: channel modeling and transceiver design. Channel modeling objectives aim at understanding and characterization of particle velocity channels, whereas transceiver design objectives address new issues encountered at the channel modeling stage.

摘要_地球的表面覆盖着水，有许多人类赖以生存的资源。利用声波在水下传感器、深水系泊仪器、自主水下航行器和水面船只之间进行高速无线数据通信在许多国家利益的应用中至关重要。例如海洋石油工业、环境和海洋监测以预测飓风等自然灾害等。然而，水声信道是一个复杂的和高度带宽限制的环境，现有系统可达到的数据速率远远小于需求。研究的核心新颖思想是改变水声通信的基础，通过在声场的未探测自由度上进行通信，即，声学粒子速度通道。在过去的几十年中，只有声场的压力信道被用于水下通信。在这项研究中的关键概念是利用声场的矢量分量，如声质点速度的三个分量。粒子速度信道由于其可能较小的延迟扩展而有希望用于高速通信。粒子速度收发器的小尺寸是传统上用于水下通信的大型压力阵列的另一个优势。在这项研究中，研究人员开发了一个凝聚力的框架，通过声粒子速度信道的高速率水下通信。研究目标分为两个密切相关的类别：信道建模和收发器设计。通道建模目标旨在理解和表征粒子速度通道，而收发器的设计目标解决在通道建模阶段遇到的新问题。