Harmonic Summing Improves Pulsar Detection Sensitivity: A Probability Analysis

doi:10.3847/1538-4357/aae51a

CORC > 国家天文台 > 中国科学院国家天文台

	Harmonic Summing Improves Pulsar Detection Sensitivity: A Probability Analysis
	Yu, Meng 1,2
刊名	ASTROPHYSICAL JOURNAL
	2018-11-20
卷号	868 期号:1 页码:6
关键词	pulsars: general stars: neutron
ISSN号	0004-637X
DOI	10.3847/1538-4357/aae51a
英文摘要	The practical application of the harmonic summing technique in the power-spectrum analysis for searching pulsars has exhibited the technique's effectiveness. In this paper, theoretical verification of harmonic summing considering power's noise-signal probability distribution is given. With the top-hat and the modified von Mises pulse profile models, contours along which spectra total power is expected to exceed the 3 sigma detection threshold with 0.999 confidence corresponding to m = 1, 2, 4, 8, 16, or 32 harmonics summed are given with respect to the mean pulse amplitude and the pulse duty cycle. Optimized numbers of harmonics summed relative to the duty cycles are given. The routine presented builds a theoretical estimate of the minimum detectable mean flux density, i.e., sensitivity, under the power-spectrum searching method.
资助项目	National Key Projects of China, Frontier research on radio astronomy technology ; Open Project Program of the Key Laboratory of FAST, National Astronomical Observatories, Chinese Academy of Sciences ; National Natural Science Foundation of China[11503034] ; National Natural Science Foundation of China[11261140641] ; National Natural Science Foundation of China[11403060]
WOS关键词	POWER SPECTRA
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000450221800008
资助机构	National Key Projects of China, Frontier research on radio astronomy technology ; National Key Projects of China, Frontier research on radio astronomy technology ; Open Project Program of the Key Laboratory of FAST, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of FAST, National Astronomical Observatories, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Projects of China, Frontier research on radio astronomy technology ; National Key Projects of China, Frontier research on radio astronomy technology ; Open Project Program of the Key Laboratory of FAST, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of FAST, National Astronomical Observatories, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Projects of China, Frontier research on radio astronomy technology ; National Key Projects of China, Frontier research on radio astronomy technology ; Open Project Program of the Key Laboratory of FAST, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of FAST, National Astronomical Observatories, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Projects of China, Frontier research on radio astronomy technology ; National Key Projects of China, Frontier research on radio astronomy technology ; Open Project Program of the Key Laboratory of FAST, National Astronomical Observatories, Chinese Academy of Sciences ; Open Project Program of the Key Laboratory of FAST, National Astronomical Observatories, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/23396]
专题	中国科学院国家天文台
通讯作者	Yu, Meng
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Beijing, Peoples R China 2.Chinese Acad Sci, CAS Key Lab FAST, Natl Astron Observ, 20A Datun Rd, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Yu, Meng. Harmonic Summing Improves Pulsar Detection Sensitivity: A Probability Analysis[J]. ASTROPHYSICAL JOURNAL,2018,868(1):6.
APA	Yu, Meng.(2018).Harmonic Summing Improves Pulsar Detection Sensitivity: A Probability Analysis.ASTROPHYSICAL JOURNAL,868(1),6.
MLA	Yu, Meng."Harmonic Summing Improves Pulsar Detection Sensitivity: A Probability Analysis".ASTROPHYSICAL JOURNAL 868.1(2018):6.