Zobrazeno 1 - 10
of 52
pro vyhledávání: '"J-N Aubrun"'
Publikováno v:
IFAC Proceedings Volumes. 25:307-312
The design and use of redundant robot manipulators has presented numerous challenging control problems. The two most important are the position and force control of the end effector. Solutions to both of these control problems are needed so that robo
Autor:
J-N. Aubrun, B. Sridhar
Publikováno v:
Nineteeth Asilomar Conference on Circuits, Systems and Computers, 1985..
Maximum likelihood estima- tion (MLE) is a method used to calculate the parameters of a dynamic system. It can be applied to a large class of problems and has good statistical properties. The main disad- vantage of the MLE method is the amount of com
The design and use of redundant robot manipulators has presented numerous challenging control problems. The two most important are the position and force control of the end effector. Solutions to both of these control problems are needed so that robo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::976c45cdd38e48925433bd4e01466021
https://doi.org/10.1016/b978-0-08-041715-8.50045-6
https://doi.org/10.1016/b978-0-08-041715-8.50045-6
Autor:
K.R. Lorell, J.-N. Aubrun
The next generation of ground and space-based optical systems is characterized by their large size and high performance requirements. They rely heavily on active control to compensate for inadequate mechanical accuracy caused by manufacturing process
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f1e8ab9c9aa4e341b9b8f6ab2e10d79
https://doi.org/10.1016/b978-0-08-037027-9.50028-8
https://doi.org/10.1016/b978-0-08-037027-9.50028-8
Publikováno v:
IEEE Control Systems Magazine. 9:13-20
A description is given of an experimental test apparatus for active control of a seven-segment primary reflector (mirror). Segmented reflectors require an active segment-alignment control system to give the reflecting surface the optical performance
Publikováno v:
IEEE Control Systems Magazine. 5:29-35
This paper describes a laboratory experiment, referred to as the Beam Control Experiment (BCE), which has the essential features of a large flexible structure. The experiment is used to develop and evaluate identification and control algorithms that
Publikováno v:
IEEE Control Systems Magazine. 6:28-34
This paper describes the design of a precision pointing control system for the Space Infrared Telescope Facility (SIRTF). SIRTF mission requirements and their impact on control system design are discussed along with the original features of the contr
Autor:
J.-N. Aubrun, K.R. Lorell
Publikováno v:
IFAC Proceedings Volumes. 20:181-191
The W. M. Keck Observatory Ten Meter Telescope (TMT) will be a high peformance astronomical telescope capable of unprecedented ground-based observations. One of the unique freatures of the TMT is its primary mirror which is composed of 36 hexagonal s
Publikováno v:
Journal of Guidance, Control, and Dynamics. 7:535-545
This paper describes the detailed approaches and experimental results for controlling both the rigid body and structural modes of a 1.2-m-diam circular plate. The experiments demonstrate required methodology and expected pathologies in effecting moda
Publikováno v:
IEEE Control Systems Magazine. 7:3-10
The W. M. Keck Observatory and Telescope are presently under construction on Mauna Kea, Hawaii. When completed in 1990, the telescope will be the world's largest instrument for astronomical observations at visible and infrared wavelengths. The primar