The paper presents a constructive design procedure for the problem of estimating the state vector of a discrete-time linear stochastic system with time-invariant dynamics when certain constraints are imposed on the nu...
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The paper presents a constructive design procedure for the problem of estimating the state vector of a discrete-time linear stochastic system with time-invariant dynamics when certain constraints are imposed on the number of memory elements of the estimator. The estimator reconstructs the state vector exactly for deterministic systems while the steady-state performance in the stochastic case may be comparable to that obtained by the optimal (unconstrained) Wiener-Kalman filter.
The following optimal regulator problem is considered: Find the scalar control f miction u = u(t) which minimizes the performance index Q, A are constant n × n-matrices;f is a constant n-vector. It is shown that ...
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作者：
DOLAN, JOHN W.REAR ADMIRALTHE AUTHOR graduated from the U. S. Naval Academy in June 1939 and was commissioned Ensign. He subsequently advanced in rank
attaining that of Rear Admiral to date from January 1 1967. His first assignment was aboard the USS PENSACOLA the heavy cruiser operating in the Pacific when the U. S. entered World War II. Detached from the PENSACOLA in May 1942 he received postgraduate instruction in naval architecture and marine engineering at M. I. T. where he earned his M. S. degree in 1944. Designated for Engineering Duty Only in that year he was assigned in November to the Philadelphia Naval Shipyard to serve in connection with aircraft carrier construction and ship repair until November 1946. The next month he joined the Staff of Commander Service Force U.S. Pacific as Fleet Maintenance Officer and in August 1949 reported as Production Assistant to the Director of the Ship Technical Division Bureau of Ships Navy Department. He was Assistant Repair Superintendent at the Charleston (South Carolina) Naval Shipyard for a two-year period ending in July 1956 after which time he attended the Naval War College Newport Rhode Island. Completing the course in June 1957 he was assigned to Puget Sound (Washington) Naval Shipyard. In August 1960 he became Shipbuilding Assistant to the Assistant Chief of the Bureau of Ships for Design Shipbuilding and Fleet Maintenance Navy Department and in April 1963 was detached for duty as Commander San Francisco Naval Shipyard. In December 1965 he assumed command of the Long Beach Naval Shipyard and in October 1967 reported as Fleet Maintenance Officer/Assistant Chief of Staff for Maintenance and Logistic Plans Staff Commander in Chief U. S. Atlantic Fleet. He also held the additional duty as Maintenance Officer Staff Commander in Chief Atlantic and Commander in Chief Western Atlantic. In August 1969 he was ordered for his present duty as Deputy Commander for Field Activities Program Director for Shipyard Modernization and Management Naval Ships Sy
The U. S. Naval Shipyards are a tremendous industrial capability, of irreplaceable value to the Fleet. Their specific capabilities have been tailored to meet the needs of a changing mix of ship types that make up the ...
作者：
SHERRILL, WMGREEN, TCTRAVERS, DNWilliam M. Sherrill is Manager
Intercept and Direction Finding Research in the Department of Applied Electromagnetics at Southwest Research Institute San Antonio. He received his M.S. in Physics from Rice University in 1959 and his bachelor degrees in Physics and Mathematics from the University of Texas in 1957. Since joining the staff of Southwest Research Institute in 1959 he has been engaged in Naval shipboard radio direction finding research concentrating on advanced techniques of direction finding using multichannel receivers fixed antennas and the application of digital logic and computation in DF system control. He is a member of the Institute of Electrical and Electronics Engineers IEEE Professional Group on Antennas and Propagation American Astronomical Society and the Scientific Research Society of America. Terry C. Green is a Senior Research Engineer in the Department of Applied Electromagnetics at Southwest Research Institute
San Antonio. He took the B.S. in Electrical Engineering from the University of Texas in 1958 and served as a commissioned officer in the U. S. Air Force from 1958 to 1962. His duties as a USAF officer included experience in military search and tracking radar and electrical support equipment design for high performance fighter aircraft. In 1962 he joined the staff of Southwest Research Institute and has been engaged in high frequency and very high frequency radio direction finding techniques for surface ship and submarine application. He is a member of the IEEE Professional Group on Antennas and Propagation and Sigma Pi Sigma. Douglas N. Travers is Director of the Department of Applied Electromagnetics at Southwest Research Institute
San Antonio. He obtained his B.E. in Electrical Engineering from Johns Hopkins University in 1951 and joined the staff of Southwest Research Institute in 1951. He is the inventor of two antenna systems for high frequency direction finding designed for shipboard application and for the past 15 years has been engaged in direction finding theor
This report summarizes the practical requirements for siting radio direction finders operating in the 3 to 30 mc range and is intended primarily for the use of personnel responsible for site selection and DF antenna i...
This report summarizes the practical requirements for siting radio direction finders operating in the 3 to 30 mc range and is intended primarily for the use of personnel responsible for site selection and DF antenna installation on Naval ships. The effects of reradiation from the ship's superstructure on direction finder performance are described. By the use of specific examples of shipboard installations, the merits of various siting compromises are discussed.
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