NDLI: A data-adaptive time-frequency representation applied to the scattering from a jet aircraft

Content Provider	IEEE Xplore Digital Library
Author	Moghaddar, A. Walton, E.K.
Copyright Year	1994
Description	Author affiliation: Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA (Moghaddar, A.; Walton, E.K.)
Abstract	The electromagnetic (EM) scattering from the engine inlets and exhausts of a jet aircraft are a significant part of the total RCS from the aircraft. The engine inlet/outlets can be modeled as open-ended waveguide cavities with complex termination due to the engine turbine. It is known that, for certain frequency band, the scattering from such cavities is dispersive. Time-frequency representations (TFR) have been recognized as the appropriate tool for describing the scattering from frequency-dispersive structures. A TFR based on a multi-resolution tiling of the time-frequency plane is presented. The idea of a multi-resolution representation is often associated with the wavelet transform (WT). The multi-resolution property of the WT is extended to obtain a data-adaptive multi-resolution/multi-focusing TFR. This TFR is then applied to the backscattered signal from the engine outlets of an aircraft in flight.<>
Starting Page	680
Ending Page	683
File Size	180090
Page Count	4
File Format	PDF
ISBN	0780320093
DOI	10.1109/APS.1994.407999
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-06-20
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Time frequency analysis Engines Radar scattering Electromagnetic scattering Aircraft propulsion Electromagnetic waveguides Dispersion Wavelet domain Bandwidth Delay
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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