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A Fast Radio Burst Search Method for VLBI Observation
Liu, Lei1; Tong, Fengxian1; Zheng, Weimin1,2,3; Zhang, Juan1; Tong, Li1
2018-02-01
Source PublicationASTRONOMICAL JOURNAL
ISSN0004-6256
Volume155Issue:2Pages:12
Corresponding AuthorLiu, Lei(liulei@shao.ac.cn)
AbstractWe introduce the cross-spectrum-based fast radio burst (FRB) search method for Very Long Baseline Interferometer (VLBI) observation. This method optimizes the fringe fitting scheme in geodetic VLBI data post-processing, which fully utilizes the cross-spectrum fringe phase information and therefore maximizes the power of single-pulse signals. Working with cross-spectrum greatly reduces the effect of radio frequency interference compared with using auto-power spectrum. Single-pulse detection confidence increases by cross-identifying detections from multiple baselines. By combining the power of multiple baselines, we may improve the detection sensitivity. Our method is similar to that of coherent beam forming, but without the computational expense to form a great number of beams to cover the whole field of view of our telescopes. The data processing pipeline designed for this method is easy to implement and parallelize, which can be deployed in various kinds of VLBI observations. In particular, we point out that VGOS observations are very suitable for FRB search.
Keywordmethods: data analysis pulsars: general radio continuum: general techniques: interferometric
DOI10.3847/1538-3881/aaa6c5
WOS KeywordBASE-LINE INTERFEROMETRY ; HOST GALAXY ; SOFTWARE CORRELATOR ; REFERENCE FRAME ; FRB 121102 ; SYSTEM ; ASTROMETRY ; GEODESY ; ORIGIN
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000424002500001
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22293
Collection中国科学院紫金山天文台
Corresponding AuthorLiu, Lei
Affiliation1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China
3.Shanghai Key Lab Space Nav & Positioning Techn, Shanghai 200030, Peoples R China
Recommended Citation
GB/T 7714
Liu, Lei,Tong, Fengxian,Zheng, Weimin,et al. A Fast Radio Burst Search Method for VLBI Observation[J]. ASTRONOMICAL JOURNAL,2018,155(2):12.
APA Liu, Lei,Tong, Fengxian,Zheng, Weimin,Zhang, Juan,&Tong, Li.(2018).A Fast Radio Burst Search Method for VLBI Observation.ASTRONOMICAL JOURNAL,155(2),12.
MLA Liu, Lei,et al."A Fast Radio Burst Search Method for VLBI Observation".ASTRONOMICAL JOURNAL 155.2(2018):12.
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