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作者:

Liu, Ce (Liu, Ce.) | Zhao, Jie (Zhao, Jie.) | Wang, Dayong (Wang, Dayong.) | Wang, Yunxin (Wang, Yunxin.) | Rong, Lu (Rong, Lu.) | Lin, Shufeng (Lin, Shufeng.)

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摘要:

Optical synthetic aperture (OSA) imaging system is an effective method for astronomical telescopes to realize super-resolution imaging, which has important applications in astronomical observation and space remote sensing. The time-division multiplexing sub-aperture array is a potentially powerful way to construct the larger array configuration by changing the basic array configuration several times with less apertures. In this paper, according to the theory of incoherent optical imaging, the physical mechanism of space/frequency domain response of OSA system is discussed. From the basic pinhole-aperture array to the circular-aperture array, the evolution of the point spread function (PSF) and the modulation transfer function (MTF) is analyzed. The inherent laws and imaging differences between the time-division multiplexing sub-aperture array and the traditional synthetic aperture array are revealed. Also, it is shown that under the specific array condition, the reconstructed image obtained by the time-division multiplexing synthetic aperture system can approach the imaging quality and resolution given by the traditional synthetic aperture array. It provides a new perspective for the array configuration design of OSA imaging system. © 2022 SPIE.

关键词:

Optical transfer function Optical remote sensing Image resolution Optical radar Time division multiplexing Optical signal processing Synthetic apertures Imaging systems

作者机构:

  • [ 1 ] [Liu, Ce]Department of Physics and Optoelectronics Engineering, Faculty of Science, Beijing University of Technology, 100 Ping Le Yuan, Beijing; 100124, China
  • [ 2 ] [Zhao, Jie]Department of Physics and Optoelectronics Engineering, Faculty of Science, Beijing University of Technology, 100 Ping Le Yuan, Beijing; 100124, China
  • [ 3 ] [Zhao, Jie]Beijing Engineering Research Center of Precision Measurement Technology and Instruments, 100 Ping Le Yuan, Beijing; 100124, China
  • [ 4 ] [Wang, Dayong]Department of Physics and Optoelectronics Engineering, Faculty of Science, Beijing University of Technology, 100 Ping Le Yuan, Beijing; 100124, China
  • [ 5 ] [Wang, Dayong]Beijing Engineering Research Center of Precision Measurement Technology and Instruments, 100 Ping Le Yuan, Beijing; 100124, China
  • [ 6 ] [Wang, Yunxin]Department of Physics and Optoelectronics Engineering, Faculty of Science, Beijing University of Technology, 100 Ping Le Yuan, Beijing; 100124, China
  • [ 7 ] [Wang, Yunxin]Beijing Engineering Research Center of Precision Measurement Technology and Instruments, 100 Ping Le Yuan, Beijing; 100124, China
  • [ 8 ] [Rong, Lu]Department of Physics and Optoelectronics Engineering, Faculty of Science, Beijing University of Technology, 100 Ping Le Yuan, Beijing; 100124, China
  • [ 9 ] [Rong, Lu]Beijing Engineering Research Center of Precision Measurement Technology and Instruments, 100 Ping Le Yuan, Beijing; 100124, China
  • [ 10 ] [Lin, Shufeng]Department of Physics and Optoelectronics Engineering, Faculty of Science, Beijing University of Technology, 100 Ping Le Yuan, Beijing; 100124, China

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ISSN: 0277-786X

年份: 2022

卷: 12478

语种: 英文

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