Acoustic communication performance of the WHOI Micro-Modem in sea trials of the Nereus vehicle to 11,000 m depth
Acoustic communication performance of the WHOI Micro-Modem in sea trials of the Nereus vehicle to 11,000 m depth
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DOI：
10.23919/oceans.2009.5422316
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发表时间：
2009-10
期刊：
影响因子：
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通讯作者：
Sandipa Singh;Sarah E. Webster;L. Freitag;L. Whitcomb;K. Ball;J. Bailey;Chris L. Taylor
中科院分区：
文献类型：
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作者：
Sandipa Singh;Sarah E. Webster;L. Freitag;L. Whitcomb;K. Ball;J. Bailey;Chris L. Taylor
新的无人深潜Nereus混合动力潜水器可以使用光纤电缆配置为系留远程操作潜水器（ROV），并且可以作为自主水下航行器（AUV）进行非系留操作。在计划的自主操作和无系绳上升期间，或者如果光纤断裂，车辆使用声学通信系统，允许地面的工程师和科学家监控其系统并控制其操作。伍兹霍尔海洋学研究所微型调制解调器可编程用于不同的数据速率、带宽和载波频率，使用船上和船上的定向传感器，在7至14 kHz的频带内工作，以提供通信链路。最近，在马里亚纳海沟10，903米深度的海试中，对速率、带宽和载波频率的十种不同组合进行了测试，以确定每种组合在声学范围方面的性能。在6000米范围内，5000 bps是可能的，在11000米范围内，每秒200比特是可靠的。
The new, unmanned, deep-diving Nereus hybrid vehicle can be configured as a tethered remotely operated vehicle (ROV) using a fiber-optic cable, and it can operate un-tethered as an autonomous underwater vehicle (AUV). During planned autonomous operations and un-tethered ascents, or if the fiber breaks, the vehicle uses an acoustic communication system to allow engineers and scientists at the surface to monitor its systems and control its operation. The Woods Hole Oceanographic Institution (WHOI) Micro-Modem, programmable for different data rates, bandwidths and carrier frequencies, uses directional transducers on both the ship and the vehicle, operating in the band from 7 to 14 kHz, to provide the communications link. During recent sea trials of Nereus in the Mariana Trench to 10,903 m depth, ten different combinations of rates, bandwidths, and carrier frequencies were tested to establish the performance of each with respect to acoustic range. 5000 bps was possible to 6000 m range, and at 11000 m range, 200 bits per second was reliable.