2026-09-19T21:57:19Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/179722022-01-13T07:54:29Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
Robert T. Atkins and Jin Au Kong.
Zhang, Beijia, 1980-
Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
2005-06-02T19:27:56Z
2005-06-02T19:27:56Z
2004
2004
http://hdl.handle.net/1721.1/17972
57174737
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004.
Includes bibliographical references (p. 213-218).
Although many radar cross section prediction techniques exist, none have proven to be completely satisfactory when applied to large cavities. Exact numerical techniques can accurately predict RCS, but are too computationally expensive to be used for many cavity geometries. High frequency techniques are computationally efficient but often are inaccurate in predicting the RCS of cavities. This inaccuracy becomes particularly apparent when the wideband range resolved signature is desired. To overcome these limitations, this thesis investigates the possibility of modeling large duct cavities in a piecewise manner using a finite-difference time-domain approach, modified to successively model individual subsections of the cavity. This change improves the computational efficiency of FD-TD while maintaining a high level of accuracy.
by Beijia Zhang.
M.Eng.
218 p.
8277092 bytes
8305555 bytes
application/pdf
application/pdf
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.
http://dspace.mit.edu/handle/1721.1/7582
Electrical Engineering and Computer Science.
Multiple region finite-difference time-domain modeling of duct cavities
Thesis
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