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Co-phasing of segmented telescopes using dual wavelength digital holography
SPIE Proceedings, 2014An approach for the online co-phasing of segmented telescopes using dual wavelength digital holography has been proposed. In this approach, two digital interferograms, one fringe pattern for one wavelength, which are acquired by a high speed CCD camera using a Mach-Zehnder point diffraction interferometer, are required.
Changwei Li, Sijiong Zhang
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The research on electric method for testing co-phasing error
SPIE Proceedings, 2007The primary mirror's aperture limits the telescope's resolution. A segmented primary mirror is adopted to improve the resolution. Since the primary mirror with large diameter is segmented, the segmented mirrors must be co-phased to ensure the imaging quality. Optical method and electrics method can be used to test the co-phasing error between the two
Weirui Zhao, Genrui Cao
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Co-phase error detection for segmented mirrors with ptychography
Optics Communications, 2023Liangliang Li +3 more
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GMT ASM co-phasing numerical simulation and experimental results
Adaptive Optics Systems VIII, 2022Mauro Manetti +9 more
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Co-Phase Error Detection of Segmented Mirrors
Acta Optica Sinica, 2017郑 彬 Zheng Bin +3 more
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Co-Phased Median Filters, Some Peculiarities of Sweep Signal Processing
Mathematical Geology, 2005Median filters are nonlinear and a theoretical analysis of their behavior is very difficult and so are rarely used for the processing of seismic data. However, they are able to preserve steps, sharp discontinuities and edges that are lost using most other standard filters.
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Coarse co-phasing detection of segmented mirrors
Optics and Precision Engineering, 2018李 斌 LI Bin +2 more
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Optical Co-Phasing Detection Technology of Segmented Telescopes
Laser & Optoelectronics Progress, 2020张龙 Zhang Long +3 more
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A contribution to the Sm–Co phase diagram
Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry, 1974openaire +1 more source
Co phasing Experiment of Active Optics for Segmented Mirror
ACTA PHOTONICA SINICA, 2018李斌 LI Bin +5 more
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