ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Other Sources  (1,041)
  • CYBERNETICS  (1,041)
  • 1985-1989  (1,041)
  • 1
    facet.materialart.
    Unknown
    Knowledge acquisition for a simple expert controller (1987)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: A method is presented for process control which has the properties of being incremental, cyclic and top-down. It is described on the basis of the development of an expert controller for a simple, but nonlinear control route. A quality comparison between expert controller and process operator shows the ability of the method for knowledge acquisition.
    Keywords: CYBERNETICS
    Type: NASA-TT-20118 , NAS 1.77:20118
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 2
    facet.materialart.
    Unknown
    Controller design for the improvement of feedback properties: A method for tuning the weight in the evaluation function of the LQG theory (1987)
    In:  CASI
    Details
    Publication Date: 2019-08-27
    Description: In the controller design of a linear time-invariant system, it is important to improve the feedback properties such as robust stability and sensitivity. In the multi-input multi-output case, these properties can be estimated by using the singular values of return difference matrix. The design method to obtain better singular-value-points is desired. How to tune the weight matrix of performance index and/or covariance matrix of noise in the Linear Quadratic Gaussian (LQC) theory to get a desired singular-value-plot was studied. First, the property of singular-value plots of return difference matrix of a system designed by LQG theory is examined from the viewpoint of tuning weight. Second, a distance between real singular-value-plots and a desired plot is defined, and the weight of performance index is numerically determined by quasi-Newton method so that the distance is minimized.
    Keywords: CYBERNETICS
    Type: NASA-TT-20027 , NAS 1.77:20027
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 3
    facet.materialart.
    Unknown
    Proceedings of the Workshop on Space Telerobotics, volume 3 (1987)
    In:  CASI
    Details
    Publication Date: 2019-08-13
    Description: Planning and scheduling for robot applications, trajectory planning for manipulators, and manipulator control are discussed.
    Keywords: CYBERNETICS
    Type: NASA-CR-184687 , JPL-PUBL-87-13-VOL-3 , NAS 1.26:184687 , Jan 20, 1987 - Jan 22, 1987; Pasadena, CA; United States
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 4
    facet.materialart.
    Unknown
    Proceedings of the Workshop on Space Telerobotics, volume 2 (1987)
    In:  CASI
    Details
    Publication Date: 2019-08-13
    Description: Research on sensing and perception, telerobots, man machine interface, scheduling, trajectory planning for manipulators, and manipulator control is discussed.
    Keywords: CYBERNETICS
    Type: NASA-CR-184686 , JPL-PUBL-87-13-VOL-2 , NAS 1.26:184686 , Jan 20, 1987 - Jan 22, 1987; Pasadena, CA; United States
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 5
    facet.materialart.
    Unknown
    Proceedings of the Workshop on Space Telerobotics, volume 1 (1987)
    In:  CASI
    Details
    Publication Date: 2019-08-13
    Description: These proceedings report the results of a workshop on space telerobotics, which was held at the Jet Propulsion Laboratory, January 20-22, 1987. Sponsored by the NASA Office of Aeronautics and Space Technology (OAST), the Workshop reflected NASA's interest in developing new telerobotics technology for automating the space systems planned for the 1990s and beyond. The workshop provided a window into NASA telerobotics research, allowing leading researchers in telerobotics to exchange ideas on manipulation, control, system architectures, artificial intelligence, and machine sensing. One of the objectives was to identify important unsolved problems of current interest. The workshop consisted of surveys, tutorials, and contributed papers of both theoretical and practical interest. Several sessions were held on the themes of sensing and perception, control execution, operator interface, planning and reasoning, and system architecture.
    Keywords: CYBERNETICS
    Type: NASA-CR-184685 , JPL-PUBL-87-13-VOL-1 , NAS 1.26:184685 , Jan 20, 1987 - Jan 22, 1987; Pasadena, CA; United States
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 6
    facet.materialart.
    Unknown
    Joint-space adaptive control of a redundant telerobot manipulator (1989)
    In:  Other Sources
    Details
    Publication Date: 2019-07-27
    Description: The design of a joint-space adaptive control scheme for controlling the slave arm motion of a dual-arm telerobot system is presented. Each slave arm of the dual-arm system is a kinematically redundant manipulator with 7 DOF. The implementation of the derived control scheme does not require the computation of manipulator dynamics, which makes the control scheme sufficiently fast for real-time applications.
    Keywords: CYBERNETICS
    Type: IEEE International Symposium on Intelligent Control; Sept. 25-26, 1989; Albany, Ny; United States
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 7
    facet.materialart.
    Unknown
    Spillover stabilization of large space structures (1988)
    In:  Other Sources
    Details
    Publication Date: 2019-07-27
    Description: Active control of large flexible space structures is typically implemented to control only a few known elastic modes. This paper considers the stabilization of the neglected dynamics of the higher modes of vibration. An attempt is made to design modal controllers with improved spillover stability properties. Two formulations for designing the observer to improve spillover stability with minimum performance loss are proposed. One optimizes the noise statistics used in the design of the Kalman-Bucy Filter (KBF), while the other directly optimizes the the gain matrix of the KBF.
    Keywords: CYBERNETICS
    Type: AIAA PAPER 88-2484 , AIAA SDM Issues of the International Space Station, Conference; Apr. 21, 22, 1988; Williamsburg, VA; United States
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 8
    facet.materialart.
    Unknown
    Automated knowledge generation (1988)
    In:  CASI
    Details
    Publication Date: 2019-07-20
    Description: The general objectives of the NASA/UCF Automated Knowledge Generation Project were the development of an intelligent software system that could access CAD design data bases, interpret them, and generate a diagnostic knowledge base in the form of a system model. The initial area of concentration is in the diagnosis of the process control system using the Knowledge-based Autonomous Test Engineer (KATE) diagnostic system. A secondary objective was the study of general problems of automated knowledge generation. A prototype was developed, based on object-oriented language (Flavors).
    Keywords: CYBERNETICS
    Type: NASA-CR-181317 , NAS 1.26:181317
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 9
    facet.materialart.
    Unknown
    Towards reasoning visualization in expert systems (1989)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Preliminary results are presented of ongoing research to develop visualization paradigms for expert systems reasoning processes. The results are based in part on a prototype implementation that is being developed to visualize the reasoning processes of a rule-based forward chaining expert system. The research is based on the premise that the presentation of information at the highest applicable conceptual level will enhance the assimilation of that information. Hierarchical levels in both the syntactic and semantic levels of reasoning in expert systems are described in detail.
    Keywords: CYBERNETICS
    Type: IEA/AIE-89; Jun 06, 1989 - Jun 09, 1989; Tullahoma, TN; United States
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 10
    facet.materialart.
    Unknown
    Classification of data patterns using an autoassociative neural network topology (1989)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: A diagnostic expert system based on neural networks is developed and applied to the real-time diagnosis of jet and rocket engines. The expert system methodologies are based on the analysis of patterns of behavior of physical mechanisms. In this approach, fault diagnosis is conceptualized as the mapping or association of patterns of sensor data to patterns representing fault conditions. The approach addresses deficiencies inherent in many feedforward neural network models and greatly reduces the number of networks necessary to identify the existence of a fault condition and estimate the duration and severity of the identified fault. The network topology used in the present implementation of the diagnostic system is described, as well as the training regimen used and the response of the system to inputs representing both previously observed and unknown fault scenarios. Noise effects on the integrity of the diagnosis are also evaluated.
    Keywords: CYBERNETICS
    Type: IEA/AIE-89; Jun 06, 1989 - Jun 09, 1989; Tullahoma, TN; United States
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...