ITR/AP: Development of Efficient Real-Time Multi-mode Data Assimilation and Analysis Techniques for the Arecibo and Related Geophysical Radar Systems

ITR/AP：阿雷西博及相关地球物理雷达系统高效实时多模式数据同化和分析技术的开发

• 批准号: 0113454
• 负责人: John Mathews
• 金额: $ 40万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-01 至 2004-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0113454&HistoricalAwards=false
• 关键词: ITR; AP; Development; Efficient; Real

A three-year program is proposed involving development of the IT-techniques necessary to make the most efficient bandwidth and science use of the available observation time at Arecibo Observatory (AO) by flexibly accelerating the data processing. The proposed IT-approach will be tested via two high-impact science test/demonstration cases to be conducted at AO. The first involves simultaneous high-range/time resolution dual-beam incoherent scatter radar (ISR) observations of the 50-600 km ionosphere and a simultaneous search-using the same data stream-for heliocentric orbital objects above the atmosphere. The second will search the data-stream for meteors and completely reduce the highly complex meteor data to geophysical parameters in real-time while also processing the same data-stream for ionosphere D-region spectra. These science goals will be pursued while processing for interference and satellite-returns, providing appropriate real-time display, and archiving both original and processed data. The proposed approach will allow full use of off-the-shelf technological advancements such ad the wide-bandwidth/large-dynamic-range IF-sampling receivers developed for cell-phone base-stations and cheap but powerful general-purpose desktop/single-board computers. This hardware plus proposed algorithm development will permit assimilation of the real-time data at the full rate thus flexibly enabling optimal interference processing, real-time data display, and multi-mode parallel-outcome scientific processing. The proposed development of this flexible data-processing environment would not only prove useful to the geophysical radar community but would also provide the same environment for wide-bandwidth/multi-frequency radio astronomy observations at AO. This approach would also broadly-impact other geophysical radar and radio astronomy facilities by enabling simple adoption of this proposed low-cost general-purpose data processing/interpretations environment.

提出了一个为期三年的计划，涉及必要的IT技术的发展，使最有效的带宽和科学利用可用的观测时间在阿雷西博天文台（AO）通过灵活地加速数据处理。 拟议的信息技术方法将通过在AO进行的两个高影响力科学测试/演示案例进行测试。 第一项涉及同时对50-600公里电离层进行高距离/时间分辨率双波束非相干散射雷达观测，并使用同一数据流同时搜索大气层上方的日心轨道物体。 第二个将在数据流中搜索流星，并将高度复杂的流星数据实时地完全简化为地球物理参数，同时还处理电离层D区光谱的同一数据流。 将在处理干扰和卫星返回信号、提供适当的实时显示以及将原始数据和处理后的数据存档的同时，努力实现这些科学目标。 所提出的方法将允许充分利用现成的技术进步，如广告的宽带宽/大动态范围IF采样接收机开发的手机基站和便宜，但功能强大的通用台式机/单板计算机。 这种硬件加上提出的算法开发将允许以全速率同化实时数据，从而灵活地实现最佳干扰处理，实时数据显示和多模式并行结果科学处理。 拟议开发的这种灵活的数据处理环境不仅将证明对地球物理雷达界有用，而且还将为AO的宽带宽/多频射电天文观测提供同样的环境。 这一方法还将对其他地球物理雷达和射电天文学设施产生广泛影响，使人们能够简单地采用这一拟议的低成本通用数据处理/解释环境。