DocumentCode
1278538
Title
On the modifier chirp z transform for synthetic aperture radar systems
Author
Adams, John W. ; Bayma, Robert W. ; Lawrence, Michael E. ; Petrosian, Leon
Author_Institution
Dept. of Electr. & Comput. Eng., California State Univ., Northridge, CA, USA
Volume
39
Issue
4
fYear
1991
fDate
4/1/1991 12:00:00 AM
Firstpage
953
Lastpage
955
Abstract
A modified chirp z -transform (MCZT) algorithm which has been proposed by W. Lawton (IEEE Trans. Acoust., Speech, Signal Processing, vol.ASSP-36, p.931-3, June 1988) to replace the conventional polar format interpolation in synthetic aperture radar (SAR) systems is discussed. The key assumption used in the MCZT approach is that the spatial-frequency samples can be obtained on a concentric squares (CS) grid. The CS grid is briefly reviewed. The conventional approach to processing CS grid data is described. The MCZT is discussed, and its disadvantages are emphasized
Keywords
Z transforms; picture processing; radar theory; concentric squares grid; image processing; modifier chirp z transform; synthetic aperture radar systems; Airborne radar; Aircraft; Azimuth; Chirp; Frequency; Image coding; Interpolation; Radar imaging; Signal processing algorithms; Synthetic aperture radar;
fLanguage
English
Journal_Title
Signal Processing, IEEE Transactions on
Publisher
ieee
ISSN
1053-587X
Type
jour
DOI
10.1109/78.80918
Filename
80918
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