Author: Celeste M. BelcastroPublisher:
ISBN:
Category : Digital control systems
Languages : en
Pages : 28
Book Description
A Monitor for the Laboratory Evaluation of Control Integrity in Digital Control Systems Operating in Harsh Electromagnetic Environments
Author: Celeste M. BelcastroPublisher:
ISBN:
Category : Digital control systems
Languages : en
Pages : 28
Book Description
A Monitor for the Laboratory Evaluation of Control Integrity in Digital Control Systems Operating in Harsh Electromagnetic Environments
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781722008345
Category :
Languages : en
Pages : 24
Book Description
This paper presents a strategy for dynamically monitoring digital controllers in the laboratory for susceptibility to electromagnetic disturbances that compromise control integrity. The integrity of digital control systems operating in harsh electromagnetic environments can be compromised by upsets caused by induced transient electrical signals. Digital system upset is a functional error mode that involves no component damage, can occur simultaneously in all channels of a redundant control computer, and is software dependent. The motivation for this work is the need to develop tools and techniques that can be used in the laboratory to validate and/or certify critical aircraft controllers operating in electromagnetically adverse environments that result from lightning, high-intensity radiated fields (HIRF), and nuclear electromagnetic pulses (NEMP). The detection strategy presented in this paper provides dynamic monitoring of a given control computer for degraded functional integrity resulting from redundancy management errors, control calculation errors, and control correctness/effectiveness errors. In particular, this paper discusses the use of Kalman filtering, data fusion, and statistical decision theory in monitoring a given digital controller for control calculation errors. Belcastro, Celeste M. and Fischl, Robert and Kam, Moshe Langley Research Center RTOP 505-64-10-10...
Scientific and Technical Aerospace Reports
Author: Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 700
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Monthly Catalogue, United States Public Documents
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 956
Book Description
Monthly Catalog of United States Government Publications
Author: United States. Superintendent of DocumentsPublisher:
ISBN:
Category : Government publications
Languages : en
Pages : 954
Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Government Reports Announcements & Index
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1430
Book Description
Government Reports Annual Index
Author: Publisher:
ISBN:
Category : Research
Languages : en
Pages : 1828
Book Description
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Author: 
Author: 
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