Fast Implementation of Transmit Beamforming for Colocated MIMO Radar
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Date
2015-04
Authors
Sharma, Gollakota Venkata Krishna
Rajeswari, Konduri Raja
ORCID
Advisor
Referee
Mark
Journal Title
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Volume Title
Publisher
Společnost pro radioelektronické inženýrství
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Abstract
Multiple-input Multiple-output (MIMO) radars benefit from spatial and waveform diversities to improve the performance potential. Phased array radars transmit scaled versions of a single waveform thereby limiting the transmit degrees of freedom to one. However MIMO radars transmit diverse waveforms from different transmit array elements thereby increasing the degrees of freedom to form flexible transmit beampatterns. The transmit beampattern of a colocated MIMO radar depends on the zero-lag correlation matrix of different transmit waveforms. Many solutions have been developed for designing the signal correlation matrix to achieve a desired transmit beampattern based on optimization algorithms in the literature. In this paper, a fast algorithm for designing the correlation matrix of the transmit waveforms is developed that allows the next generation radars to form flexible beampatterns in real-time. An efficient method for sidelobe control with negligible increase in mainlobe width is also presented.
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Citation
Radioengineering. 2015 vol. 24, č. 1, s. 171-177. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2015/15_01_0171_0177.pdf
http://www.radioeng.cz/fulltexts/2015/15_01_0171_0177.pdf
Document type
Peer-reviewed
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Published version
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en