Results 271 to 280 of about 21,086 (310)
Some of the next articles are maybe not open access.
Adaptive control for the IOS adaptive optics system
Unconventional and Indirect Imaging, Image Reconstruction, and Wavefront Sensing 2019, 2019Future adaptive optics systems will require advanced predictive control algorithms that mitigate loop latency by forecasting disturbances. In many applications, such as laser communications terminals, synthesizing such controllers is challenging due to the non-stationary nature of the disturbance statistics over long periods.
Jonathan Tesch +3 more
openaire +1 more source
SPIE Proceedings, 2000
After successful testing at the Raytheon facility in Danbury, Connecticut, the completed SAAO adaptive optical system has been shipped to the AEOS site on Haleakala, Maui, Hawaii. The system is undergoing final integration with the AEOS observatory. This paper describes the adaptive optics system design, including an overview of al major subsystems ...
Rene Abreu +13 more
openaire +1 more source
After successful testing at the Raytheon facility in Danbury, Connecticut, the completed SAAO adaptive optical system has been shipped to the AEOS site on Haleakala, Maui, Hawaii. The system is undergoing final integration with the AEOS observatory. This paper describes the adaptive optics system design, including an overview of al major subsystems ...
Rene Abreu +13 more
openaire +1 more source
A laser communication adaptive optics system as a testbed for extreme adaptive optics
Adaptive Optics Systems VI, 2018The Integrated Optical System (IOS) is an extreme adaptive optics system designed for NASA’s Laser Com- munication Relay Demonstration mission. There is a great deal of overlap between the requirements for laser communication AO and high-contrast exoplanet imaging AO systems. Both require very high Strehl ratios with narrow fields of view. This overlap
Jonathan A. Tesch +8 more
openaire +1 more source
The GEMINI Adaptive Optics System
Adaptive Optics, 1995The GEMINI telescopes project in an international partnership between the United States of America, the United Kingdom, Canada, Chile, Brazil and Argentina to built two eight-meter astronomical telescopes, one on Mauna Kea, Hawaii and one on Cerro Pachon, Chile. The top science requirement of these instruments is superb image quality.
openaire +1 more source
Adaptive optical equalization for optical communication systems
2023Optical fiber communication systems have the advantages of long-distance transmission and large information capacity over traditional communication systems using copper cables. The signal processing can be performed in the electronic domain and/or the optical domain.
openaire +1 more source
The Palomar Adaptive Optics System
Adaptive Optics, 1996Currently under construction at the Jet Propulsion Laboratory, the Palomar Adaptive Optics System (PALAO) is a Cassegrain-mounted system for infrared astronomy incorporating active laser metrology to minimize the effects of mechanical flexure.
openaire +1 more source
Modeling an Adaptive Optics System
2009In Chapter 1, we discussed methods for numerically simulating the propagation of an optical wave through the atmosphere. The approaches considered allow adequate modeling of turbulent distortion and thermal blooming of coherent optical radiation. However, the development of a numerical model for atmospheric distortions of optical waves is not our ...
openaire +1 more source
Experimental adaptive optics system
Optical Engineering, 1994Experimental results of a new approach to the problem of sharpness function maximization in adaptive optics are presented. The main difference from the ordinary method is in the forming of signals, proportional to the components of the sharpness function gradient, in an optical processor.
openaire +1 more source
Adaptive Optics Applications and Systems
2022Robert K. Tyson, Benjamin W. Frazier
openaire +1 more source
Adaptive optics based on machine learning: a review
Opto-Electronic Advances, 2022Youming Guo, Libo Zhong, Lei Min
exaly