ITR/AP: The Low Frequency Array (LOFAR) - A Digital Radio Telescope

ITR/AP：低频阵列 (LOFAR) - 数字射电望远镜

• 批准号: 0121164
• 负责人: Colin Lonsdale
• 金额: $ 200万
• 依托单位: Northeast Radio Observatory Corp
• 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 2005-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0121164&HistoricalAwards=false
• 关键词: ITR; AP; Low; Frequency; Array

AST 0121164LonsdaleThe goals of this project are to produce a computer-model which will serve as a data simulator for a new type of radio telescope (a 400-km, low frequency, radio telescope that will work in the 10-240 MHz wavelength range). The output of this computer model will be used to study a variety of different instrument designs as well as develop techniques for the post-processing data analysis. The latter will include the development of a network architecture and protocol to support the data rates, support for dynamic range and fidelity levels that are beyond the present state-of-the-art, and the calibration of the ionospheric propagation delays and instrumental characteristics that require new techniques and algorithms. The project is part of the US participation in an international collaboration (designated LOFAR for Low Frequency Array) which is projected for operation in 2006. An additional $9-10 million is being invested in the design by Netherlands Foundation for Research in Astronomy (NFRA, [ASTRON in Dutch]) and the US Naval Research Laboratory (NRL). The National Academy of Sciences Decadal Survey of Astronomy (2001) recommended the project for NSF support. This effort is a major new astronomy initiative. NSF participation will guarantee wide access to the instrument by the US astronomical community, although the primary funding will come from NRL and ASTRON.***

AST 0121164 Lonsdale该项目的目标是制作一个计算机模型，作为新型射电望远镜（400公里，低频，射电望远镜，将在10-240 MHz波长范围内工作）的数据模拟器。 该计算机模型的输出将用于研究各种不同的仪器设计以及开发后处理数据分析技术。 后者将包括开发网络结构和协议，以支持数据速率，支持超出目前最先进水平的动态范围和保真度水平，以及校准电离层传播延迟和仪器特性，这需要新的技术和算法。该项目是美国参与国际合作（指定为低频阵列LOFAR）的一部分，预计将于2006年投入使用。荷兰天文学研究基金会（NFRA，荷兰语ASTRON）和美国海军研究实验室（NRL）正在为设计追加900万至1000万美元的投资。 美国国家科学院天文学十年调查（2001年）建议该项目获得NSF的支持。 这项工作是一项重大的新天文学倡议。NSF的参与将保证美国天文学界广泛使用该仪器，尽管主要资金将来自NRL和ASTRON。