Method and system for improving fringe contrast ratio through fixed star light interference wavefront detection

Method and system for improving fringe contrast ratio through fixed star light interference wavefront detection

The invention discloses a method and a system for improving fringe contrast through fixed star light interference wavefront detection. The method comprises the following steps: simulating a starlight source and simulating atmospheric turbulence information; simulating phase screen information of sta...

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Hauptverfasser: HOU YONGHUI, XU TENG, YUAN XIANGYAN, CHEN SAINAN, WEI WEI
Format: Patent
Sprache:chi ; eng
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COLORIMETRY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
PHYSICS
RADIATION PYROMETRY
TESTING
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creator HOU YONGHUI
XU TENG
YUAN XIANGYAN
CHEN SAINAN
WEI WEI
description The invention discloses a method and a system for improving fringe contrast through fixed star light interference wavefront detection. The method comprises the following steps: simulating a starlight source and simulating atmospheric turbulence information; simulating phase screen information of starlight passing through atmospheric turbulence and a telescope, performing interference processing, analyzing an interference result, and calculating an interference contrast; compensating by using a deformable mirror based on low-order adaptive optics, simulating phase screen information of starlight passing through atmospheric turbulence, a telescope and the deformable mirror and performing interference processing, performing interference processing on phase information corrected by using the deformable mirror, analyzing an interference result and calculating an interference contrast; comparing the contrast ratios of two times of interference, and improving the fringe contrast ratio by using deformable mirror phas
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subjects COLORIMETRY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
PHYSICS
RADIATION PYROMETRY
TESTING
title Method and system for improving fringe contrast ratio through fixed star light interference wavefront detection
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