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   -> Volume 7, Issue 5

Job: Research opportunities at NASA Dryden
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Marty Brenner (

PostPosted: Tue Apr 28, 1998 7:04 pm    
Subject: Job: Research opportunities at NASA Dryden
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#16 Job: Research opportunities at NASA Dryden

Contributed by: Martin J. Brenner

NASA/RRA/NRC Research Awards for 1998
at NASA Dryden Flight Research Center

NASA Resident Research Associateship (RRA)
administered by the National Research Council (NRC)
Postdoctoral and Senior Research Awards for 1998
Opportunity for Research at NASA Dryden Flight Research Center

Proposed Research Title:
Nonlinear Estimation of Aerospace Systems using Multiscale System Theory

The ability to identify and control nonlinear phenomena is extremely
important to the aerospace community. Understanding aeroelastic
nonlinear dynamics is becoming vital for advanced design
configurations. Stability estimation from flight data must account
for nonlinearity to distinguish linear from nonlinear dynamics for
model validation.

Confidence bounds are desired in identification schemes to guarantee
system stability within a flight regime. Identification from flight
data consistent with the uncertainty and disturbance models is desired
for an explicit measure of stability at any flight condition.

Application of time-frequency multiscale methods is an attractive
approach to this research. Wavelets provide systematic tools for
signal processing of nonlinear and time-varying systems. Wavelet
research at NASA Dryden concentrates on algorithms to generate
time-frequency multiscale representations to identify nonlinear and
time-varying aspects of the system dynamics. Multiscale system theory
may be a promising approach to this research.

Dryden is studying linear and nonlinear identification algorithms and
methodologies for in-flight aeroservoelastic robust stability
determination. Intelligent data processing and analysis methods are
desired for accurate control-oriented stability determination during
flight testing. This integrated research effort requires innovative
data processing, multiscale identification, and robust system theory

Contact: Marty Brenner
NASA Dryden Flight Research Center
MS 4840D / RS
Edwards, California 93523-0273

Phone: 805-258-3793
Fax: 805-258-2586

Postdoctoral Research Associateships are awarded to persons who have
held the doctorate less than five years and are made initially for one
year. Extensions to two years are common.

Senior Research Associateships are awarded only to applicants who have
held the doctorate five years or more and demonstrate research
experience that has resulted in significant contributions and
recognition as established investigators. They are usually for one
year, but awards for periods of three months or longer may be
considered. A Research Associate must conduct his research full-time
and on-site (NASA Dryden).

This opportunity for research IS ONLY OPEN TO US CITIZENS.

The FINAL review of applications is conducted by special panels
appointed by the NRC. Evaluations are conducted in February, June, and
October. Awards are made only by the NRC. The current annual stipend
is approximately $50,000 for Postdoctoral Research Associate, and
approximately $80,000 for Senior Research Associate.

Detailed information on procedures and all necessary application
materials and supporting documents are available on request from:

Associateship Programs E-mail:
TJ 2114 WWW:
National Research Council Gopher:
2101 Constitution Avenue NW
Washington, D.C. 20418
All times are GMT + 1 Hour
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