Model-Based Wavefront Control for CCAT

机译：基于模型的CCAT波前控制

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The 25-m aperture CCAT submillimeter-wave telescope will have a primary mirror that is divided into 162 individual segments, each of which is provided with 3 positioning actuators. CCAT will be equipped with innovative Imaging Displacement Sensors (IDS) - inexpensive optical edge sensors - capable of accurately measuring all segment relative motions. These measurements are used in a Kalman-filter-based Optical State Estimator to estimate wavefront errors, permitting use of a minimum-wavefront controller without direct wavefront measurement. This controller corrects the optical impact of errors in 6 degrees of freedom per segment, including lateral translations of the segments, using only the 3 actuated degrees of freedom per segment. The edge sensors do not measure the global motions of the Primary and Secondary Mirrors. These are controlled using a gravity-sag look-up table. Predicted performance is illustrated by simulated response to errors such as gravity sag.

机译：25米孔径的CCAT亚毫米波望远镜将具有一个主镜，该主镜分为162个独立的部分，每个部分都配备了3个定位致动器。 CCAT将配备创新的成像位移传感器（IDS）-廉价的光学边缘传感器-能够精确测量所有段的相对运动。这些测量用于基于卡尔曼滤波器的光学状态估计器中，以估计波前误差，从而允许使用最小波前控制器，而无需直接进行波前测量。该控制器仅使用每个分段的3个激活的自由度，就可以校正每个分段6个自由度中的误差的光学影响，包括分段的横向平移。边缘传感器不测量主镜和次镜的整体运动。这些通过重力下垂查找表进行控制。通过对诸如重力垂度之类的误差的模拟响应来说明预测的性能。

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来源
《Integrated modeling of complex optomechanical systems》|2011年|p.83360Q.1-83360Q.27|共27页
会议地点 Kiruna(SE)
作者
David Redding; John Z. Lou; Andy Kissil; Matt Bradford; Steve Padin; David Woody;
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作者单位

Jet Propulsion Laboratory, California Institute of Technology, Pasadena CA 91109;

Jet Propulsion Laboratory, California Institute of Technology, Pasadena CA 91109;

Jet Propulsion Laboratory, California Institute of Technology, Pasadena CA 91109;

Jet Propulsion Laboratory, California Institute of Technology, Pasadena CA 91109;

California Institute of Technology, Pasadena CA 91106;

California Institute of Technology, Pasadena CA 91106;

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原文格式 PDF
正文语种 eng
中图分类光学仪器;
关键词
segmented mirror; wavefront control; edge sensors; kalman filter;

机译：分段镜波前控制；边缘传感器；卡尔曼滤波器;

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1. 自适应滤波前馈控制器实现智能旋翼振动的实时控制 [J] . 陈仁文, 孙亚飞, 王鑫伟南京航空航天大学学报（英文版） . 2003,第001期
2. Comparison between iterative wavefront control algorithm and direct gradient wavefront control algorithm for adaptive optics system [J] . Cheng Sheng-Yi, Liu Wen-Jin, Chen Shan-Qiu, 中国物理：英文版 . 2015,第008期

机译：自适应光学系统迭代波阵面控制算法与直接梯度波阵面控制算法的比较
3. Comparison of Wavefront Synthesized by Directly-Aligned Multi-Point Controlled Wavefront Synthesis and Wave Field Synthesis [J] . Noriyoshi KAMADO, Hamhide HOKARI, Shoji SHIMADA, 電子情報通信学会技術研究報告. 応用音響. Engineering Acoustics . 2009,第136期

机译：直接对准多点控制波阵面合成与波场合成的波阵面比较
4. Comparison of Wavefront Synthesized by Directly-Aligned Multi-Point Controlled Wavefront Synthesis and Wave Field Synthesis [J] . Noriyoshi KAMADO, Haruhide HOKARI, Shoji SHIMADA, 電子情報通信学会技術研究報告 . 2009,第136期

机译：直接对准多点控制波阵面合成与波场合成的波阵面比较
5. Preliminary design of the wavefront sensor for CCAT [C] . David Naylor, Brad Gom, Melanie Leclerc, Conference on millimeter, submillimeter, and far-infrared detectors and instrumentation for astronomy . 2014

机译：CCAT波前传感器的初步设计
6. Next generation wavefront controller for the MMT adaptive optics system: Algorithms and techniques for mitigating dynamic wavefront aberrations [D] . Powell, Keith B. 2012

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7. Large Aberration Correction by Magnetic Fluid Deformable Mirror with Model-Based Wavefront Sensorless Control Algorithm [O] . Xiang Wei, Yuanyuan Wang, Zhan Cao, 2019

机译：基于模型的波前无传感器控制算法的磁流体可变形镜大像差校正
8. Model-based wavefront control for CCAT [O] . David Redding, John Z. Lou, Andy Kissil, 2011

机译：基于模型的CCAT的波前控制
9. Integration Sensing and Controls for Coal Gasification: Development of Model-Based Controls for GE's Gasifier and Syngas Cooler. Final Technical Report [R] . Kumar, A. 2011

机译：煤气化的集成传感和控制：为GE的气化炉和合成气冷却器开发基于模型的控制。最终技术报告

Model-Based Wavefront Control for CCAT

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