Large Aperture Space Telescopes in Formation: Modeling, Metrology, and Control

2005 ◽  
Vol 53 (4) ◽  
pp. 391-412 ◽  
Author(s):  
Edward Mettler ◽  
William G. Breckenridge ◽  
Marco B. Quadrelli
Keyword(s):  
Space Telescopes ◽  
Large Aperture ◽  
And Control

scholarly journals A Tip–Tilt and Piston Detection Approach for Segmented Telescopes

Photonics ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 3
Author(s):  
Shun Qin ◽  
Wai Kin Chan
Keyword(s):  
Error Detection ◽  
Phase Retrieval ◽  
Dynamic Range ◽  
Detection Accuracy ◽  
Wavefront Sensing ◽  
Next Generation ◽  
Large Aperture ◽  
Detection Approach ◽  
Segmented Mirror ◽  
And Control

Accurate segmented mirror wavefront sensing and control is essential for next-generation large aperture telescope system design. In this paper, a direct tip–tilt and piston error detection technique based on model-based phase retrieval with multiple defocused images is proposed for segmented mirror wavefront sensing. In our technique, the tip–tilt and piston error are represented by a basis consisting of three basic plane functions with respect to the x, y, and z axis so that they can be parameterized by the coefficients of these bases; the coefficients then are solved by a non-linear optimization method with the defocus multi-images. Simulation results show that the proposed technique is capable of measuring high dynamic range wavefront error reaching 7λ, while resulting in high detection accuracy. The algorithm is demonstrated as robust to noise by introducing phase parameterization. In comparison, the proposed tip–tilt and piston error detection approach is much easier to implement than many existing methods, which usually introduce extra sensors and devices, as it is a technique based on multiple images. These characteristics make it promising for the application of wavefront sensing and control in next-generation large aperture telescopes.

Strategies for high order wavefront sensing and control (HOWFSC) computation on future space telescopes

2021 ◽  
Author(s):  
Nicholas Belsten ◽  
Leonid Pogorelyuk ◽  
Christian Haughwout ◽  
Eric Cady ◽  
Kerri L. Cahoy
Keyword(s):  
High Order ◽  
Wavefront Sensing ◽  
Space Telescopes ◽  
Future Space ◽  
And Control

Hysteresis nonlinear compensation and control for large-aperture piezoelectric fast steering mirror

2019 ◽  
Vol 48 (2) ◽  
pp. 218004
Author(s):  
张 泉 Zhang Quan ◽  
尹达一 Yin Dayi ◽  
魏传新 Wei Chuanxin
Keyword(s):  
Large Aperture ◽  
Nonlinear Compensation ◽  
And Control

What limits the achievable areal densities of large aperture space telescopes?

2005 ◽  
Author(s):  
Lee D. Peterson ◽  
Jason D. Hinkle
Keyword(s):  
Space Telescopes ◽  
Large Aperture

scholarly journals Overview and recent accomplishments of the advanced mirror technology development (AMTD) for large aperture UVOIR space telescopes project

2013 ◽  
Author(s):  
H. Philip Stahl ◽  
Marc Postman ◽  
Laura Abplanalp ◽  
William Arnold ◽  
Ron Eng ◽  
...  
Keyword(s):  
Technology Development ◽  
Space Telescopes ◽  
Large Aperture

scholarly journals Last results of technological developments for ultra-lightweight, large aperture, deployable mirror for space telescopes

2017 ◽  
Author(s):  
Lisa Gambicorti ◽  
Christian Vettore ◽  
Franco Lisi ◽  
Daniele Gallieni ◽  
Joao Pereira do Carmo ◽  
...  
Keyword(s):  
Space Telescopes ◽  
Large Aperture ◽  
Technological Developments

scholarly journals Edison: A Second Generation Infrared Space Observatory

1990 ◽  
Vol 123 ◽  
pp. 501-505 ◽  
Author(s):  
H.A. Thronson ◽  
T.G. Hawarden ◽  
C.M. Mountain ◽  
J.K. Davies ◽  
T.J. Lee ◽  
...  
Keyword(s):  
Second Generation ◽  
The Moon ◽  
Space Telescopes ◽  
Space Observatory ◽  
Infrared Space Observatory ◽  
Large Aperture ◽  
Stage Of Development ◽  
Upper Stage ◽  
Space Observatories ◽  
Infrared Sources

AbstractEDISON is a large-aperture telescope under study for the second generation of infrared space observatories, whether in orbit or on the moon. The optics equilibrate via radiative cooling to temperatures between 40 and 80 K, depending upon, for example, telescope structure and location. At these temperatures, telescope emission is below that of the astronomical background at all wavelengths shortward of 20-40 μm. The detector components can be cooled via mechanical refrigerators now in an advanced stage of development. A mixture of radiative and mechanical cooling means that there is no natural limit to EDISON’s lifetime. In addition, the upper stage rocket fairing can be almost filled with light-collecting optics and alternative low-emissivity optical designs, such as off-axis systems, can be easily engineered. We are presently evaluating a design for a 2.5 m observatory to be launched in collaboration with European astronomers as part of the NASA Explorer program. In this presentation, we describe possible spectroscopic and spectrophotometric studies of very faint infrared sources that will require large-aperture space telescopes working at the celestial background limit.

Wavefront Error Modeling and Control Method for Large Aperture Optical Unit in High Power Solid-State Laser

2017 ◽  
Vol 37 (7) ◽  
pp. 0714003
Author(s):  
姚 超 Yao Chao ◽  
王 辉 Wang Hui ◽  
张 政 Zhang Zheng ◽  
刘天野 Liu Tianye
Keyword(s):  
Solid State ◽  
High Power ◽  
Control Method ◽  
Solid State Laser ◽  
Error Modeling ◽  
Modeling And Control ◽  
Large Aperture ◽  
Wavefront Error ◽  
And Control ◽  
Optical Unit

Temperature Difference Analysis and Control Methods in Precision Finishing of Large-Aperture Optical Component

2014 ◽  
Vol 41 (11) ◽  
pp. 1116001
Author(s):  
焦翔 Jiao Xiang ◽  
朱健强 Zhu Jianqiang ◽  
樊全堂 Fan Quantang ◽  
李养帅 Li Yangshuai
Keyword(s):  
Temperature Difference ◽  
Optical Component ◽  
Control Methods ◽  
Difference Analysis ◽  
Large Aperture ◽  
And Control ◽  
Precision Finishing
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