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Filtering by: Committee Member Kolodziej, W. Remove constraint Committee Member: Kolodziej, W. Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

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Nonlinear approach to the direction finding problem in array processing

Creator:

Ill-keun Rhee

Abstract:

In sonar or radar array processing, one of the most important objectives is to estimate the angles of incidence of distant source signals in a noisy environment. The standard eigenstructure-based method, which is known to yield high resolution spectral estimates for solving the direction finding problem, relies on the assumption...

Resource Type:

Dissertation
Fundamental studies of atomic diffusion by computer simulation of atomic processes on the giga event scale and multiple PC's in parallel

Creator:

Zhang, Qiongshan

Abstract:

The classic treatment of diffusion by Einstein and by Chandrasekhar assumed conservative boundary conditions; mobile species were neither created nor destroyed on the sample surface. It is normal to assume that vacancies and host interstitials are created and annihilated on incoherent interfaces or free surfaces; i.e., these are assumed to...

Resource Type:

Masters Thesis
Sliding-mode control of the super maneuverable aircraft

Creator:

Koo, Chang Sul

Abstract:

In this thesis, A nonlinear methodology for the control of the highly maneuverable, high performance aircraft HARV (F-18) is studied by using sliding-mode control (SMC). This control law, which takes a continuous function when the input constraints are not considered, satisfies the reachability condition by which concerned states are driven...

Resource Type:

Dissertation
Nonlinear control applied to power systems

Creator:

Vedam, Rajkumar

Abstract:

When large disturbances occur in interconnected power systems, there exists the danger that the power system states may leave an associated region of stability, if timely corrective action is not taken. Open-loop remedial control actions such as field-forcing, line-tripping, switching of series-capacitors, energizing braking resistors, etc., are helpful in reducing...

Resource Type:

Dissertation
Nonlinear adaptive control of highly maneuverable high performance aircraft

Creator:

Cho, Sul

Abstract:

This thesis presents an effective control design methodology using a one-step-ahead prediction adaptive control law and an adaptive control law based on a Lyapunov function. These control law were applied to a highly maneuverable high performance aircraft, in particular, a modified F/A-18. An adaptive controller is developed to maneuver an...

Resource Type:

Dissertation
Frequency-domain, parameter estimation for a brushless, doubly-fed machine

Creator:

Ramchandran, Ashok

Abstract:

A Brushless, Doubly Fed Machine (BDFM) attempts to combine the advantages of conventional induction and synchronous types of electrical machines by its unique architecture. The validation of BDFM designs in an actual test environment requires the estimation of the BDFM model parameters from actual experimentation. Accurate values for the parameters...

Resource Type:

Dissertation

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Academic Affiliation

Electrical and Computer Engineering5
Mechanical Engineering1

Advisor

Mohler, Ronald R.2
Alexander, Gerald C.1
Mohler, R. R.1
Mohler, Ron1
van Vechten, James A.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1990 to 1995

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Committee Member

Kolodziej, W.[remove]6
Davis, Joel3
Arthur, J. R.1
Burton, R.1
Engelbrecht, R.1
more Committee Members »

Creator

Cho, Sul1
Ill Keun Rhee1
Koo, Chang Sul1
Ramchandran, Ashok1
Vedam, Rajkumar1
more Creators »

Date

Date range begin – Date range end

Current results range from 1990 to 1994

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Decade

1990-19996

Degree Field

Electrical and Computer Engineering5
Mechanical Engineering1

Degree Level

Doctoral5
Master's1

Degree Name

Doctor of Philosophy (Ph.D.)5
Master of Science (M.S.)1

Language

English [eng]6

Non-Academic Affiliation

Oregon State University. Graduate School[remove]6

Peer Reviewed

No6

Resource Type

Dissertation5
Masters Thesis1

Rights Statement

Copyright Not Evaluated5
In Copyright1

Subject

Airplanes -- Control systems2
Adaptive control systems1
Airplanes -- Handling characteristics -- Mathematical models1
Array processors1
Diffusion -- Computer simulation1
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