Generalized approach to resolution analysis in BSAR

Bistatic synthetic aperture radars (BSARs) have been the focus of increasing research activity over the last decade. The generalized ambiguity function (GAF) of bistatic SAR is introduced here. First, the GAF for BSAR is represented in the delay-Doppler domain, and is then expanded to the spatial (c...

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Bibliographic Details
Published in:IEEE transactions on aerospace and electronic systems 2005-04, Vol.41 (2), p.461-474
Main Authors: Tao Zeng, Cherniakov, M., Teng Long
Format: Article
Language:English
Subjects:
Aerospace
Aircraft components
Ambiguity
Azimuth
Delay effects
Directive antennas
Electronic systems
Fourier transforms
Frequency
Receiving antennas
Resolution cell
Signal resolution
Spatial resolution
Synthetic aperture radar
Transmitters
Transmitting antennas
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Summary:Bistatic synthetic aperture radars (BSARs) have been the focus of increasing research activity over the last decade. The generalized ambiguity function (GAF) of bistatic SAR is introduced here. First, the GAF for BSAR is represented in the delay-Doppler domain, and is then expanded to the spatial (coordinates) domain. From the GAF, comprehensive knowledge regarding the resolution of BSAR can be extracted, including the range and azimuth resolutions, as well as the area of a resolution cell of BSAR. These general results are also applied to the performance analysis of several particular BSAR geometries, including the space-surface-BSAR (SS-BSAR) system, to demonstrate the potential ability of this newly introduced system.
ISSN:0018-9251
1557-9603
DOI:10.1109/TAES.2005.1468741