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Generalization of adaptive observer and method of optimizing its convergence properties

Journal of Dynamic systems, Measurement and Control, Transactions of the ASME 1977年第1期99卷 15-22页

作者： Kim, C.H. Lindorff, D.P. Autonetics Group Marine Systems Division Rockwell International Anaheim CA United States Department of Electrical Engineering and Computer Science University of Connecticut Storrs CT United States

This paper concerns a generalization of the design of the adaptive observer, and an investigation of its convergence properties. By application of hyperstability theory the design freedom is enlarged to permit use of time variable adaptive gains. Based on the assumption of periodic excitation, and with the aid of Floquel Theory a new convergence criterion is defined. By this means the effects of adaptive gains and input frequencies upon convergence lime are evaluated. Structural properties of the adaptive observer are compared with other adaptive schemes, in particular with regard to bias due to noise. © 1977 by ASME.

关键词： Mechanical properties Noise (Sound) Excitation Design

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An advanced tactical computer concept 77

An advanced tactical computer concept

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4th Annual Symposium on computer Architecture, ISCA 1977

作者： Thurber, Kenneth J. Patton, Peter C. Deward, Robert C. Strauss, Jon C. Petschauer, Thomas W. Electrical Engineering Department Moore School of Engineering University of Pennsylvania PhiladelphiaPA United States Defense Systems Division Product Development Group Sperry Univac St. PaulMN United States Computer Science Department University of Minnesota MinneapolisMN United States

ISBN: (纸本)9781450379113

This paper discusses the design of a real-time computer. The computer's design requirements, design decisions, and architecture are summarized. The paper discusses how the design requirements influenced the computer architecture. The system's three upward compatible addressing options (real, base, virtual) are also discussed. © 2018 ACM, Inc.

关键词： computer architecture

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Considerations for new tactical computer systems 77

Considerations for new tactical computer systems

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4th Annual Symposium on computer Architecture, ISCA 1977

作者： Strauss, Jon C. Thurber, Kenneth J. Electrical Engineering Department Moore School of Engineering University of Pennsylvania PhiladelphiaPA United States Defense Systems Division Product Development Group Sperry Univac St. PaulMN United States Computer Science Department University of Minnesota MinneapolisMN United States

ISBN: (纸本)9781450379113

The real-time command and control environments characteristic of tactical military systems and industrial process control systems place unique and conflicting design requirements on a support computer system. These requirements include fast context switching, selective protection of programs and their files, controlled sharing of program and files, high processing speed, flexible, yet fast priority structure for interrupts and program execution, flexible high-speed I/O and flexible intercommunication and control for interacting programs. This paper describes a new computer system now being prototyped to satisfy these requirements. The system design includes a number of unique features relating to the efficient implementation of a flexible virtual memory addressing system for the stringent real-time environment. © 2018 ACM, Inc.

关键词： Real time systems

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Radiation from a current loop in an inhomogeneous plasma column

Radiation from a current loop in an inhomogeneous plasma col...

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Antennas and Propagation Society International Symposium

作者： W. Wong D. Cheng TRW Systems Group Inc. Redondo Beach CA USA Electrical & Computer Engineering Department Syracuse University Syracuse NY USA

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Reflector aperture - Blocking by a loaded wire feed

Reflector aperture - Blocking by a loaded wire feed

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Antennas and Propagation Society International Symposium

作者： W. Rusch W. Imbriale R. Bruce Department of Electrical and Computer Engineering University of Southern California Los Angeles CA USA Defense and Space Systems Group Redondo Beach CA USA

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Abstracts

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Environmental Management 1977年第1期1卷 67-96页

作者： Frankenfeld, John W. Schulz, Wolfgang McMurty, George J. Petersen, Gary W. May, G. A. Hering, F. S. Schwartz, J. I. Heywood, J. B. Chigier, N. A. Grohse, E. W. Walker, J. D. Colwell, R. R. Petrakis, L. Pergament, H. S. Thorpe, R. D. Schoepf, Richard W. Krzyczkowski, Roman Henneman, Suzanne S. Hudson, Charles L. Putnam, Evelyn S. Thiesen, Donna J. Parks, G. A. McCarty, Perry L. Leckie, J. O. Schrumpf, Barry J. Simonson, G. H. Paine, D. P. Lawrence, R. D. Pyott, W. T. Leh, M. Elders, W. Combs, J. Caplen, T. Harrison, F. L. Wong, K. M. Heft., R. E. Charnell, Robert L. Lehmann, Edward J. Mallon, Lawrence G. Hatfield, Cecile Adams, Gerald H. Johanning, James Talvitie, Antti Noll, Kenneth E. Miller, Terry Smiarowski, Joseph F. Willis, Cleve E. Foster, John H. Schlesinger, Benjamin Daetz, Douglas Lear, Donald U. Smith, Mona F. Hundemann, Audrey S. Crockett, Pernell W. Werner, Kirk G. Carroll, Thomas E. Maase, David L. Genco, Joseph E. Ifeadi, Christopher N. Lowman, F. G. Christensen, S. W. Van Winkle, W. Mattice, J. S. Harrison, Elizabeth A. Barker, James C. Chesness, Jerry L. Smith, Ralph E. Shaheeen, Donald G. Raney, R. Keith Borton, T. Wezernak, C. T. Raney, R. K. Sherwani, Jabbor K. Moreau, David H. Eisenberg, Norman A. Lynch, Cornelius J. Breeding, Roger J. Johnson, J. D. Foster, K. E. Mouat, D. A. Clark, R. Hyden, John William Owen, Wilfred Bayfield, Neil G. Barrow, Graham C. Stolz, Stephanie B. Wienckowski, Louis A. Brown, Betram S. Keyfitz, Nathan Wilson, W. L. Newman, Peter W. G. Bammi, Deepak Bammi, Dalip Goddard, James E. Chisholm, Tony Walsh, Cliff Brennan, Geoffrey Thompson, K. S. Richardson, R. Jensen, Clayton E. Brown, Dail W. Mirabito, John A. Cowing, Thomas G. Binghamton, Suny Siehl, George H. Albrecht, O. W. Alexander, Ariel Barde, Jean -Philippe Darby, William P. McMichael, Francis Clay Dunlap, Robert W. Muckleston, Keith W. Frankenhoff, Charles A. Giulini, Lorenzo T. Wyatt, T. Black, Peter E. Keating, William Thomas Leonard, M. E. Fisher, E. L. Brunelle, M. F. Dickinson, J. E. Pethig, Rudiger Clapham Exxon Research & Engineering Co. Linden Government Research Lab Coast Guard Washington D.C. Department of Transportation Washington D.C. Office For Remote Sensing of Earth Resources. NASA Earth Resources Survey Program Pennsylvania State University Washington D.C. Department of the Navy Washington D.C. Cambridge. Dept. of Mechanical Engineering Massachusetts Inst. of Technology USA Huntsville. School of Graduate Studies and Research Alabama Univ. USA Dept. of Microbiology. Office of Naval Research Maryland Univ. Arlington Research and Development Co. Pittsburgh AeroChem Research Labs. Inc. Princeton Dept. of the Interior Office of Library Services. Bibliographic Series (Final) Washington D.C. Interplan Corp. Santa Barbara Urban Mass Transportation Adm. Washington D.C. Naval Underwater Systems Center Newport Calif. Mercury Project. National Science Found Stanford Univ Washington D.C. Div. of Advanced Environmental Research & Tech. USA Corvallis. NASA Earth Resources Survey Program Oregon State Univ. Washington D.C. Riverside. Inst. of Geophysics and Planetary Physics National Science Foundation California Univ. Washington D.C. Livermore Lawrence Livermore Lab. California Univ. USA Atlantic Oceanographic and Meteorological Labs. National Oceanic and Atmospheric Administration Miami National Technical Information Service Springfield Miami Univ. Coral Gables School of Law National Oceanic and Atmospheric Administration Rockville National Academy of Sciences Office of Sea Grant Washington D. C. School of Law National Oceanic and Atmospheric Administration Office of Sea Grant. Rockville Norman. Dept. of Civil Engineering and Environmental Science. Urban Mass Transportation Administration Oklahoma Univ. Washington D. C. Knoxville.Dept. of Civil Engineering. Federal Highway Administration Tennessee Univ. Washington D. C. Amherst.Water Resources Research Center. Office of Water Research and Technology Massachusetts Univ. Washington D. C. Calif. Dept. of Industria

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THE UNITED STATES NAVY'S “DESIGN WORK STUDY” APPROACH TO THE DEVELOPMENT OF SHIPBOARD CONTROL systems

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Naval Engineers Journal 1976年第6期88卷 62-74页

作者： PLATO, ARTIS I. GAMBREL, WILLIAM DAVID Artis I. Plato:is Head of the Design Work Study/ Shipboard Manning/Human Factors Engineering Section Systems Engineering and Analysis Branch Naval Ship Engineering Center (NAVSEC). He graduated from the City College of New York in 1956 receiving his Bachelor of Mechanical Engineering degree. Following this he started work at the New York Naval Shipyard in the Internal Combustion Engine and Cargo Elevator Section. During 1957 and 1958 he was called up for active duty with the U.S. Army Corps of Engineers and served in Europe with a Construction Engineer Battalion. After release from active duty he returned to the shipyard where he remained until 1961 when he transferred to the Naval Supply Research and Development Facility Bayonne New Jersey. Initially he was in charge of an Engineering Support Test Group and the drafting services for the whole Facility. Later he became a Project Engineer in the Food Services Facilities Branch with duties that included planning and designing new afloat and ashore messing facilities for the Navy. In 1966 he transferred to NAVSEC as a Project Engineer in the Design Work Study Section and in this capacity worked on selected projects and manning problems for new construction and also developed a computer program (Manpower Determination Model) that makes accurate crew predictions for feasibility studies. In 1969 he became Head of the Section. He has been active in the U.S. Army Reserve since his release from active duty and his duties have included command of an Engineer Company various Staff positions and his present assignment as Operations Officer for a Civil Affairs Group. He has completed the U. S. A rmy Corps of Engineers Career Course and the Civil Affairs Career Course and is presently enrolled in the U.S. Army Command and General Staff College non-resident course. Additionally he completed graduate studies at American University Washington D.C in 1972 receiving his MSTM degree in Technology of Management and is a member of ASE ASME CAA U. S. Naval Instit

The purpose of this paper is to discuss a system analysis technique called “Design Work Study”, that is used by the U.S. Navy for the development of improved ship control systems. The Design Work Study approach is one which brings about the most efficient and cost effective man‐machine combination for the ship control functions. Adherence to this process insures that the advantages of automation are balanced against incurred operational and maintenance expense. At present, U.S. Navy doctrine requires that certain ship operating stations, such as steering and propulsion control, be manned at specified ship conditions of readiness. Therefore, if personnel are needed to fulfill these combat environment obligations, excessive automation may only result in unnecessary additional acquisition costs and increased personnel skill requirements. The Design Work Study process can be applied to establish the required fine balance between the degree of built‐in automation and the shipboard manpower levels. In order to explain the techniques that are used for this process, the Authors will present a brief summary of the Design Work Study approach for optimizing shipboard control systems, including an explanation of the formal procedural tools that are applicable. In addition, a practical case study of ship control system design for one of the latest classes of Navy destroyers will be presented. This example will illustrate the resultant savings and benefits that can be realized by a judicious application of this technique. © 1976 American Society of Naval Engineers

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THE GENERATION OF DIAGNOSTIC MESSAGES

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INFOR 1975年第2期13卷 135-146页

作者： Boulton, P. I. P. Computer Systems Research Group Department of Electrical Engineering University of Toronto Toronto Canada

The techniques for the production of diagnostic messages through the use of a message generator are reviewed briefly. A detailed description of the implementation of such a message generator for the PLUTO PL/I student compiler is presented. Statistics on the performance of this generator are presented to show that significant savings in storage space are obtained while maintaining a very high level of program detail reporting in the diagnostic messages. [ABSTRACT FROM AUTHOR]

关键词： compiler diagnostics dictionary error messages message generation messages text generation

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The sensitivity of optimally designed control systems, with minimum fuel performance index

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International Journal of Control 1974年第1期20卷 101-112页

作者： JACOB ROOTENBERG Systems Research Group Department of Electrical Engineering and Computer Science Columbia University New York N.Y. 10027

This paper presents extensions of the differential performance sensitivity of infinitesimal parameter variations when a minimum fuel performance is to be implemented. The system is assumed to be linear with free end time, and with initial and final target manifolds. A result previously obtained by Rootenberg and Courtin (1973) was instrumental in establishing the relations that led to the current extension. The expression, that relates the variations of the performance index for the bang-bang control implementation, is shown to represent the performance sensitivity when a minimum fuel performance is implemented, thus generalizing the expression of differential sensitivity to a wider class of optimal systems.

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Optimization of folded plate roofs

引用

computers and Structures 1973年第1期3卷 125-132页

作者： Kostem, Celal N. Department of Civil Engineering Computer-Systems Group Fritz Engineering Laboratory Bethlehem PA United States

Increased usage of prefabricated structural components and the advantages offered by folded plate roofs necessitates the optimization of their configurations. In order to reduce the material expenditure, transportation and erection costs the dead-weight of the roof systems need to be minimized. The reported study defines a technique for the optimization of the structural weight of the folded plate roof without intermediate stiffeners and subjected to one loading system. The developed method enabled the generation of the different, and consequently the optimum, geometries by starting with an arbitrary initial geometry. The azimuthal angles, the width and the thickness of the individual panels were permitted to vary. The optimization employed a variational approach and flexibility formulation. The total weight of the roof was taken as the target function, subject to minimization. The equilibrium equations for the panels were taken as the constraint equations for the optimization process. The pseudo-weight function was established through the use of the Lagrangian multipliers. The standard Lagrangian formulation was then applied to the pseudo-weight function, and a set of optimization equations were generated. These equations, along with the original equilibrium equations, formed a system of simultaneous nonlinear transcendental equations. This set was solved using an iterative approach. The overall formulation was kept general enough to permit the inclusion of any given loading condition to permit the application of the given methodology to any folded plate roof system. © 1973.

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