3种主动合成孔径成像技术极限探测能力的分析与比较

董磊; 卢振武; 刘欣悦

doi:10.3788/CO.20191201.0138

Volume 12 Issue 1

Feb. 2019

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Chinese Optics > 2019 > 12(1): 138-147.

DONG Lei, LU Zhen-wu, LIU Xin-yue. Analysis and comparison of limit detection capabilities of three active synthetic aperture imaging techniques[J]. Chinese Optics, 2019, 12(1): 138-147. doi: 10.3788/CO.20191201.0138

Citation:

DONG Lei, LU Zhen-wu, LIU Xin-yue. Analysis and comparison of limit detection capabilities of three active synthetic aperture imaging techniques[J]. Chinese Optics, 2019, 12(1): 138-147. doi: 10.3788/CO.20191201.0138

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Analysis and comparison of limit detection capabilities of three active synthetic aperture imaging techniques

doi: 10.3788/CO.20191201.0138

DONG Lei^{1, 2
,
,},
LU Zhen-wu¹,
LIU Xin-yue¹

1.
Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China

Funds:

National Natural Science Foundation of China 11703024

Research in Advance of Spaceflight System Department 30XXXX10201

More Information

Corresponding author: DONG Lei, E-mail:nodepression@126.com
Received Date: 17 Oct 2017
Rev Recd Date: 14 Dec 2017
Publish Date: 01 Feb 2019

Abstract

Abstract

In order to deeply study the feasibility GEO imaging techniques, this paper deeply analyzes and compares three techniques for active interferometric synthetic aperture imaging by means of sensitivity. These techniques are Fourier telescopy, imaging correlography and sheared-beam imaging. Using a SNR(signal to noise ratio) model for photomultiplier tubes and laser range equations, this paper gives a detailed analysis of the limit detection capability of each technique when SNR is 5. Through simulation, it was found that the lowest single pulse energies for Fourier telescopy, imaging correlography and sheared-beam imaging were 11.4 J, 0.73 MJ and 3.1 MJ, respectively. The conclusion is that Fourier telescopy is the best among these three imaging techniques, making it most suitable for GEO imaging in the present era.
- imaging system,
- detection capability,
- Fourier telescopy,
- imaging correlography,
- sheared-beam imaging

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References(25)

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