Beamspace slow-time MIMO radar for multipath clutter mitigation

This paper concerns beamspace multiple-input multiple-output (MIMO) space-time adaptive processing (STAP) to mitigate radar clutter subject to multipath propagation between transmit and receive arrays. Transmit beams are phase-coded to be orthogonal after Doppler processing at the receiver (in "...

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Bibliographic Details
Published in2008 IEEE International Conference on Acoustics, Speech and Signal Processing pp. 2313 - 2316
Main Authors Mecca, V.F., Krolik, J.L., Robey, F.C.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.03.2008
Subjects
array signal processing
Doppler radar
Frequency
Matrix decomposition
MIMO
MIMO systems
Radar clutter
Radar signal processing
Space vector pulse width modulation
Spaceborne radar
Time domain analysis
Transmitters
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ISBN9781424414833
1424414830
ISSN1520-6149
DOI10.1109/ICASSP.2008.4518109

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Summary:This paper concerns beamspace multiple-input multiple-output (MIMO) space-time adaptive processing (STAP) to mitigate radar clutter subject to multipath propagation between transmit and receive arrays. Transmit beams are phase-coded to be orthogonal after Doppler processing at the receiver (in "slow-time"). This permits separation and coherent recombination of transmit beams to form virtual transmit nulls in directions that would otherwise result in multipath clutter returns in the receive mainlobe. Compared to element-space methods, beamspace MIMO is particularly advantageous because physical transmit beams can be designed to efficiently illuminate a sector of interest as well as maintain a low transmit voltage standing wave ratio (VSWR).
ISBN:9781424414833
1424414830
ISSN:1520-6149
DOI:10.1109/ICASSP.2008.4518109