基于多样性的滑翔机在深水中的声学通信。

Diversity-based acoustic communication with a glider in deep water.

机构信息

Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093-0238.

School of Ocean and Earth Science and Technology, University of Hawaii at Manoa, Honolulu, Hawaii 96822.

出版信息

J Acoust Soc Am. 2014 Mar;135(3):1023-6. doi: 10.1121/1.4864299.

DOI:10.1121/1.4864299

PMID:24606244

Abstract

The primary use of underwater gliders is to collect oceanographic data within the water column and periodically relay the data at the surface via a satellite connection. In summer 2006, a Seaglider equipped with an acoustic recording system received transmissions from a broadband acoustic source centered at 75 Hz deployed on the bottom off Kauai, Hawaii, while moving away from the source at ranges up to ∼200 km in deep water and diving up to 1000-m depth. The transmitted signal was an m-sequence that can be treated as a binary-phase shift-keying communication signal. In this letter multiple receptions are exploited (i.e., diversity combining) to demonstrate the feasibility of using the glider as a mobile communication gateway.

摘要

水下滑翔机的主要用途是在水柱中收集海洋学数据，并通过卫星连接定期将数据传输到水面。2006 年夏季，一个配备声学记录系统的水下滑翔机从夏威夷考艾岛底部的一个宽带声学源接收传输，该声源位于中心位置，频率为 75Hz，而水下滑翔机则在深水中以高达约 200km 的距离远离声源，并下潜至 1000m 的深度。所传输的信号是一个 m 序列，可以视为二进制相移键控通信信号。在这封信中，利用了多次接收（即分集组合）来证明将滑翔机用作移动通信网关的可行性。