First Deployment of a Novel Imaging Correlator for Radio Astronomy with the Long Wavelength Array
首次部署用于射电天文学的长波长阵列新型成像相关器
基本信息
- 批准号:1710719
- 负责人:
- 金额:$ 47.32万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2017
- 资助国家:美国
- 起止时间:2017-08-01 至 2022-07-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Astronomical radio interferometry means combining signals from multiple radio telescopes to form a single coherent image. Advances in computer hardware enable increasingly large-scale interferometers. Such instruments will probe the early Universe and explore the radio sky in real-time. This project will implement a new algorithm to enable computationally efficient interferometry on large arrays. The algorithm has been shown to be effective in theory. Thyagarajan and collaborators will demonstrate it on real data. They will use the Long Wavelength Array in La Sevilleta, New Mexico. They will encode this algorithm in specialized hardware to enable a survey of astronomical radio transients. In addition to benefitting astronomy, this algorithm may find application wherever interferometry is used. Applications include radar, acoustic interferometry used in oceanography, national security applications and medicine.Coming advances in radio astronomy will be enabled by extremely large interferometers driven by high-performance, low-cost digital signal processing. Progress toward large scale interferometry requires rethinking the correlator of an interferometer. The correlator is the radio equivalent of a camera in an optical system. It cross-correlates signals from pairwise combinations of antennae. Its computational requirements scale as O(N^2), where N is the number of antennae. It dominates the cost and power consumption of large arrays. This project will implement the Modular Optimal Frequency Fourier (MOFF) correlator concept, in which spatial Fast Fourier Transforms in the aperture plane reduce the computational complexity to O(N log N). This potentially transformative advance enables larger arrays and the study of fast transients. This project will implement the algorithm and demonstrate it on real-world data from the Long Wavelength Array at La Sevilleta, deploy a Graphical Processing Unit (GPU) based implementation, and use this method to demonstrate a transient search pipeline. This project will demonstrate feasibility for future large scale interferometry projects such as HERA phase III.
天文射电干涉测量是指将来自多个射电望远镜的信号组合在一起,形成一个单一的相干图像。 计算机硬件的进步使得越来越大规模的干涉仪成为可能。 这些仪器将探测早期宇宙,并实时探索无线电天空。 该项目将实施一种新的算法,使计算效率高的大型阵列干涉测量。 理论上证明了该算法的有效性。Thyagarajan和合作者将在真实的数据上演示它。 他们将使用位于新墨西哥州拉塞维列塔的长波阵列。 他们将在专门的硬件中对这种算法进行编码,以便能够对天文无线电瞬变进行调查。除了有益于天文学之外,该算法还可以在使用干涉测量的任何地方找到应用。 应用包括雷达、海洋学中使用的声学干涉测量、国家安全应用和医学,射电天文学的未来进步将由高性能、低成本数字信号处理驱动的超大型干涉仪实现。 大尺度干涉测量的进展需要重新思考干涉仪的相关器。 相关器相当于光学系统中的照相机。它使天线成对组合的信号互相关。 它的计算需求为O(N^2),其中N是天线的数量。 它在大型阵列的成本和功耗中占主导地位。 该项目将实现模块化最佳频率傅立叶(MOFF)相关器的概念,其中孔径平面中的空间快速傅立叶变换将计算复杂度降低到O(N log N)。 这一潜在的变革性进步使更大的阵列和快速瞬变的研究成为可能。 该项目将实现该算法,并在来自La Sevilleta长波长阵列的真实数据上进行演示,部署基于图形处理单元(GPU)的实现,并使用该方法演示瞬态搜索管道。 该项目将证明未来大规模干涉测量项目的可行性,如HERA第三阶段。
项目成果
期刊论文数量(3)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Direct wide-field radio imaging in real-time at high time resolution using antenna electric fields
使用天线电场以高时间分辨率实时直接进行宽视场无线电成像
- DOI:10.1093/mnras/stz3028
- 发表时间:2020
- 期刊:
- 影响因子:4.8
- 作者:Kent, James;Beardsley, Adam P;Bester, Landman;Gull, Steve F;Nikolic, Bojan;Dowell, Jayce;Thyagarajan, Nithyanandan;Taylor, Greg B;Bowman, Judd
- 通讯作者:Bowman, Judd
A real-time, all-sky, high time resolution, direct imager for the long wavelength array
- DOI:10.1093/mnras/stz1206
- 发表时间:2019-04
- 期刊:
- 影响因子:4.8
- 作者:J. Kent;J. Dowell;A. Beardsley;N. Thyagarajan;G. Taylor;J. Bowman
- 通讯作者:J. Kent;J. Dowell;A. Beardsley;N. Thyagarajan;G. Taylor;J. Bowman
Development of an Optimized Real-Time Radio Transient Imager for LWA-SV
LWA-SV 优化实时无线电瞬态成像仪的开发
- DOI:10.23919/usnc/ursi49741.2020.9321611
- 发表时间:2020
- 期刊:
- 影响因子:0
- 作者:Krishnan, Hariharan;Kent, James;Dowell, Jayce;Bearsdley, Adam P;Bowman, Judd D.;Taylor, Greg B;Thyagarajan, Nithyanandhan;Jacobs, Daniel
- 通讯作者:Jacobs, Daniel
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Judd Bowman其他文献
The impact of a gamified mobile question-asking app on museum visitor group interactions: an ICAP framing
游戏化移动提问应用程序对博物馆参观者群体互动的影响:ICAP 框架
- DOI:
10.1007/s11412-021-09350-w - 发表时间:
2021 - 期刊:
- 影响因子:4.3
- 作者:
Jesse Ha;Luis E. Pérez Cortés;Man Su;Brian C. Nelson;C. Bowman;Judd Bowman - 通讯作者:
Judd Bowman
The First Billion Years Report of a Study Program Team Leads Study Participants Participant Affiliation
研究计划团队的第一个十亿年报告引领研究参与者 参与者隶属关系
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
Judd Bowman - 通讯作者:
Judd Bowman
Designing for Data with Ask Dr. Discovery: Design Approaches for Facilitating Museum Evaluation with Real-Time Data Mining
- DOI:
10.1007/s10758-017-9313-4 - 发表时间:
2017-03-20 - 期刊:
- 影响因子:3.500
- 作者:
Brian C. Nelson;Cassie Bowman;Judd Bowman - 通讯作者:
Judd Bowman
Peering into the dark (ages) with low-frequency space interferometers
- DOI:
10.1007/s10686-021-09743-7 - 发表时间:
2021-09-03 - 期刊:
- 影响因子:2.200
- 作者:
Léon V. E. Koopmans;Rennan Barkana;Mark Bentum;Gianni Bernardi;Albert-Jan Boonstra;Judd Bowman;Jack Burns;Xuelei Chen;Abhirup Datta;Heino Falcke;Anastasia Fialkov;Bharat Gehlot;Leonid Gurvits;Vibor Jelić;Marc Klein-Wolt;Joseph Lazio;Daan Meerburg;Garrelt Mellema;Florent Mertens;Andrei Mesinger;André Offringa;Jonathan Pritchard;Benoit Semelin;Ravi Subrahmanyan;Joseph Silk;Cathryn Trott;Harish Vedantham;Licia Verde;Saleem Zaroubi;Philippe Zarka - 通讯作者:
Philippe Zarka
Judd Bowman的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Judd Bowman', 18)}}的其他基金
Probing Cosmic Dawn with End-to-End Forward Models
用端到端正向模型探索宇宙黎明
- 批准号:
2206766 - 财政年份:2022
- 资助金额:
$ 47.32万 - 项目类别:
Standard Grant
Collaborative Research: Commensal All-sky Imaging of Low-Frequency Transients with EPIC
合作研究:使用 EPIC 进行低频瞬变的共生全天成像
- 批准号:
2108115 - 财政年份:2021
- 资助金额:
$ 47.32万 - 项目类别:
Standard Grant
Collaborative Research: EDGES-3: Validating and Refining Global 21cm Measurements of Cosmic Dawn
合作研究:EDGES-3:验证和完善宇宙黎明的全球 21 厘米测量
- 批准号:
1908933 - 财政年份:2019
- 资助金额:
$ 47.32万 - 项目类别:
Standard Grant
The Dawn of Hydrogen Cosmology: First Stars, Dark Matter, and the Thermal History of the Early Universe
氢宇宙学的黎明:第一颗恒星、暗物质和早期宇宙的热史
- 批准号:
1813850 - 财政年份:2018
- 资助金额:
$ 47.32万 - 项目类别:
Continuing Grant
Collaborative Research: Detecting the First Light and Reionization of the Universe using Advanced Radio Instrumentation
合作研究:使用先进无线电仪器探测宇宙的第一束光和再电离
- 批准号:
1609450 - 财政年份:2016
- 资助金额:
$ 47.32万 - 项目类别:
Continuing Grant
An External Calibrator for HI Observatories
HI 天文台的外部校准器
- 批准号:
1407646 - 财政年份:2014
- 资助金额:
$ 47.32万 - 项目类别:
Standard Grant
COLLABORATIVE RESEARCH: Observing the Epoch of Reionization with the Murchison Widefield Array
合作研究:用默奇森宽场阵列观察再电离时代
- 批准号:
1410719 - 财政年份:2014
- 资助金额:
$ 47.32万 - 项目类别:
Standard Grant
Facilitating Museum Evaluation with Real-Time Data Mining
通过实时数据挖掘促进博物馆评估
- 批准号:
1438825 - 财政年份:2014
- 资助金额:
$ 47.32万 - 项目类别:
Standard Grant
EDGES-2: Detecting First Light and Reionization through the Global 21 cm Signature
EDGES-2:通过全局 21 厘米特征检测第一光和再电离
- 批准号:
1207761 - 财政年份:2012
- 资助金额:
$ 47.32万 - 项目类别:
Continuing Grant
Collaborative Research: Optimal Statistics for Redshifted 21 cm Observations of the Reionization Epoch
合作研究:再电离时代红移 21 cm 观测的最佳统计
- 批准号:
1109257 - 财政年份:2011
- 资助金额:
$ 47.32万 - 项目类别:
Standard Grant
相似海外基金
Value chain optimization for the industrial deployment of novel photochemical synthetic pathways
新型光化学合成途径产业部署的价值链优化
- 批准号:
2896293 - 财政年份:2023
- 资助金额:
$ 47.32万 - 项目类别:
Studentship
Development and deployment of novel strategies to dramatically increase the efficiency of intracellular delivery of extracellular vesicles
开发和部署新策略以显着提高细胞外囊泡的细胞内递送效率
- 批准号:
23KJ1368 - 财政年份:2023
- 资助金额:
$ 47.32万 - 项目类别:
Grant-in-Aid for JSPS Fellows
Automated Seeding and Deployment of Novel Seaweed Spores (ASDNSS)
新型海藻孢子的自动播种和部署 (ASDNSS)
- 批准号:
10072611 - 财政年份:2023
- 资助金额:
$ 47.32万 - 项目类别:
Collaborative R&D
Machine-learning generated nucleases for accelerating the deployment of a novel, low-emission food production systems
机器学习生成核酸酶,用于加速新型低排放食品生产系统的部署
- 批准号:
10072768 - 财政年份:2023
- 资助金额:
$ 47.32万 - 项目类别:
Grant for R&D
STTR Phase I: Novel State of Health Measurements Through Advanced Lithium-ion Battery Modeling for Secure and Scalable 2nd-Life Battery Deployment
STTR 第一阶段:通过先进的锂离子电池建模进行新颖的健康状况测量,以实现安全且可扩展的二次电池部署
- 批准号:
2304417 - 财政年份:2023
- 资助金额:
$ 47.32万 - 项目类别:
Standard Grant
Investigation and deployment of novel Bayesian inference algorithms in CAVATICA for identifying genomic variants underlying congenital heart defects in Down syndrome individuals
在 CAVATICA 中研究和部署新型贝叶斯推理算法,用于识别唐氏综合症个体先天性心脏缺陷的基因组变异
- 批准号:
10658217 - 财政年份:2023
- 资助金额:
$ 47.32万 - 项目类别:
Development of an autonomous control system to enable commercial deployment of novel green hydrogen generators
开发自主控制系统以实现新型绿色氢发生器的商业部署
- 批准号:
10058772 - 财政年份:2023
- 资助金额:
$ 47.32万 - 项目类别:
Launchpad
Engagement and selection of the key stakeholder for deployment of a novel water treatment demonstrator
参与和选择关键利益相关者来部署新型水处理示范项目
- 批准号:
10018719 - 财政年份:2022
- 资助金额:
$ 47.32万 - 项目类别:
Collaborative R&D
Deployment of novel real-time wastewater monitoring technology for detection of viruses and commercial use cases
部署新型实时废水监测技术来检测病毒和商业用例
- 批准号:
10019802 - 财政年份:2022
- 资助金额:
$ 47.32万 - 项目类别:
Collaborative R&D
Novel approaches for Li isotope enrichment to support the deployment of nuclear fusion reactors
支持核聚变反应堆部署的锂同位素浓缩新方法
- 批准号:
2786516 - 财政年份:2022
- 资助金额:
$ 47.32万 - 项目类别:
Studentship