Collaborative Research: Seafloor Sounding in Polar and Remote Regions

P.I. Rognstad（UH）提案编号：0328252提案标题：合作研究：极地和偏远地区的海底探测PI建议开发极地和偏远地区海底探测（SSPARR）系统，该系统将能够在船只很少或从未访问过的地区收集海底深度探测。按照提议，该系统将由大量一次性电池供电的水面漂流浮标组成，每个浮标包含一个简单的单波束测深仪、一个全球定位系统导航接收器和一个双向卫星链路。所开发的系统还将包括监测浮标、控制其功能和接收探测数据、进行质量检查和将探测数据存档的海岸基础设施。研究所将开发一个系统，使浮标可以部署在船侧或空中。他们还建议，由海岸站点启用的SPARR浮标可以帮助水下航行器导航，在这种情况下，浮标将通过声学遥测传输其自身的GPS导出位置，这些位置可以由水下航行器记录，以帮助轨迹重建或用于实时导航。这一功能预计将特别适用于偏远地区，因为在这些地区可以使用无人驾驶潜水器进行海底勘测。浮标将被战略性地部署在盛行海流将把它们带到需要水深探测的地区，以及船只很少航行的地区。SSPARR浮标的寿命将取决于声波和电磁传输的重复率，但据估计，一个典型的浮标在回声探测模式下的寿命将长达四年，而作为导航辅助设备的寿命可能只有一年。PI设想SSPARR的开发分为三个阶段：技术评估和演示阶段;全面工程开发与平行海岸现场实施;以及试验浮标生产。测试和评价工作是所有三个阶段的固有内容。本提案是三个阶段中的第一个阶段，即技术评估和示范。这项工作将需要开发用于实验室和海上测试的原型硬件;优化声纳参数和通信协议。

P.I. Rognstad (UH) Proposal #: 0328252Proposal Title: Collaborative Research: Seafloor Sounding in Polar and Remote Regions The PIs propose to develop a Seafloor Sounding in Polar and Remote Regions (SSPARR) System that will enable seafloor depth soundings to be collected in regions rarely or never visited by ships. As proposed, the system will consist of a large number of expendable, battery-powered, surface drifting buoys, each containing a simple single beam depth sounder, a GPS navigation receiver, and a bi-directional satellite link. The system developed will also include the shore infrastructure to monitor the buoys, control their function and receive sounding data, perform quality checks, and archive the sounding data. The PIs will develop a system whereby the buoys could be deployed over the side of a ship or by air. They also propose that the SPARR buoy, enabled by the shore site, could be an aid to navigation for underwater vehicles, in which case the buoy will transmit its own GPS derived location via acoustic telemetry and these positions could be recorded by the underwater vehicle to aid in track reconstruction or for use in real-time navigation. This function is expected to be of particular use in remote areas where unmanned underwater vehicles may be employed for seafloor surveys. Buoys will be strategically deployed where prevailing currents will carry them into areas where depth soundings are required, and where ships seldom travel. The lifetime of a SSPARR buoy will be dependent upon repetition rate of acoustic and electromagnetic transmissions, but it is estimated that a typical buoy will have a lifetime of up to four years in echo-sounding mode and possibly only one year as a navigation aid. The PIs envision the development of SSPARR in three phases: A technology assessment and demonstration phase; full scale engineering development with parallel shore site implementation; and pilot buoy production. Test and evaluation efforts are inherent in all three phases. This proposal is the first of the three phases, technology assessment and demonstration. This effort will entail development of prototype hardware for testing in laboratory and at sea; and optimization of sonar parameters and communication protocols.