UNIQUENESS IN INVERSE ACOUSTIC AND ELECTROMAGNETIC SCATTERING WITH PHASELESS NEAR-FIELD DATA AT A FIXED FREQUENCY

doi:10.3934/ipi.2020023

CORC > 数学与系统科学研究院 > 中国科学院数学与系统科学研究院 > 应用数学研究所

	UNIQUENESS IN INVERSE ACOUSTIC AND ELECTROMAGNETIC SCATTERING WITH PHASELESS NEAR-FIELD DATA AT A FIXED FREQUENCY
	Xu, Xiaoxu 1; Zhang, Bo 2,3,4; Zhang, Haiwen 4,5,6
刊名	INVERSE PROBLEMS AND IMAGING
	2020-06-01
卷号	14 期号:3 页码:489-510
关键词	Uniqueness inverse acoustic scattering inverse electromagnetic scattering phaseless near-field obstacle inhomogeneous medium
ISSN号	1930-8337
DOI	10.3934/ipi.2020023
英文摘要	This paper is concerned with uniqueness results in inverse acoustic and electromagnetic scattering problems with phaseless total-field data at a fixed frequency. We use superpositions of two point sources as the incident fields at a fixed frequency and measure the modulus of the acoustic total-field (called phaseless acoustic near-field data) on two spheres containing the scatterers generated by such incident fields on the two spheres. Based on this idea, we prove that the impenetrable bounded obstacle or the index of refraction of an inhomogeneous medium can be uniquely determined from the phaseless acoustic near-field data at a fixed frequency. Moreover, the idea is also applied to the electromagnetic case, and it is proved that the impenetrable bounded obstacle or the index of refraction of an inhomogeneous medium can be uniquely determined by the phaseless electric near-field data at a fixed frequency, that is, the modulus of the tangential component with the orientations e(phi) and e(theta), respectively, of the electric total-field measured on a sphere enclosing the scatters and generated by superpositions of two electric dipoles at a fixed frequency located on the measurement sphere and another bigger sphere with the polarization vectors e(phi) and e(theta), respectively. As far as we know, this is the first uniqueness result for three-dimensional inverse electromagnetic scattering with phaseless near-field data.
资助项目	NNSF of China[91630309] ; NNSF of China[11871466] ; NNSF of China[11571355] ; NSAF[U1930402] ; China Postdoctoral Science Foundation[2019TQ0023]
WOS研究方向	Mathematics ; Physics
语种	英语
出版者	AMER INST MATHEMATICAL SCIENCES-AIMS
WOS记录号	WOS:000521829300005
内容类型	期刊论文
源URL	[http://ir.amss.ac.cn/handle/2S8OKBNM/51004]
专题	应用数学研究所
通讯作者	Zhang, Haiwen
作者单位	1.Beijing Computat Sci Res Ctr, Beijing 100193, Peoples R China 2.Chinese Acad Sci, LSEC, NCMIS, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China 5.Chinese Acad Sci, NCMIS, Beijing 100190, Peoples R China 6.Univ Gottingen, Inst Numer & Appl Math, Lotzestr 16-18, D-37083 Gottingen, Germany
推荐引用方式 GB/T 7714	Xu, Xiaoxu,Zhang, Bo,Zhang, Haiwen. UNIQUENESS IN INVERSE ACOUSTIC AND ELECTROMAGNETIC SCATTERING WITH PHASELESS NEAR-FIELD DATA AT A FIXED FREQUENCY[J]. INVERSE PROBLEMS AND IMAGING,2020,14(3):489-510.
APA	Xu, Xiaoxu,Zhang, Bo,&Zhang, Haiwen.(2020).UNIQUENESS IN INVERSE ACOUSTIC AND ELECTROMAGNETIC SCATTERING WITH PHASELESS NEAR-FIELD DATA AT A FIXED FREQUENCY.INVERSE PROBLEMS AND IMAGING,14(3),489-510.
MLA	Xu, Xiaoxu,et al."UNIQUENESS IN INVERSE ACOUSTIC AND ELECTROMAGNETIC SCATTERING WITH PHASELESS NEAR-FIELD DATA AT A FIXED FREQUENCY".INVERSE PROBLEMS AND IMAGING 14.3(2020):489-510.