Collaborative Research: Seafloor Sounding in Polar and Remote Regions

P.I.Rognstad(UH)提案#：0328252提案标题：合作研究：极地和偏远地区的海底探测国际倡议建议开发极地和偏远地区海底探测系统(SSPARR)，该系统将能够在很少或从未被船只访问的区域收集海底深度探测数据。按照提议，该系统将由大量由电池供电的一次性海面漂流浮标组成，每个浮标包含一个简单的单波束测深仪、一个GPS导航接收器和一个双向卫星链路。开发的系统还将包括岸上基础设施，以监测浮标、控制浮标的功能和接收探测数据、执行质量检查并将探测数据存档。PIS将开发一种系统，通过该系统，浮标可以部署在船侧或空中。他们还提出，由岸上站点启用的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己的全球定位系统得出的位置，这些位置可由水下航行器记录，以帮助航迹重建或用于实时导航。这一功能预计在可使用无人潜航器进行海底勘测的偏远地区特别有用。浮标将战略性地部署在盛行洋流将浮标带到需要进行深度探测的区域，以及船只很少航行的区域。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长达四年，作为导航辅助可能只有一年。私人投资者计划把SSPARR的发展分为三个阶段：技术评估和示范阶段；并行岸上现场实施的全面工程开发阶段；以及试行浮标生产阶段。测试和评估工作在所有三个阶段都是固有的。这项建议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；以及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.