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dc.contributor.authorLipor, John
dc.contributor.authorAhmed, Sajid
dc.contributor.authorAlouini, Mohamed-Slim
dc.date.accessioned2015-08-24T08:36:24Z
dc.date.available2015-08-24T08:36:24Z
dc.date.issued2014-05
dc.identifier.citationLipor, J., Ahmed, S., & Alouini, M.-S. (2014). Fourier-Based Transmit Beampattern Design Using MIMO Radar. IEEE Transactions on Signal Processing, 62(9), 2226–2235. doi:10.1109/tsp.2014.2307838
dc.identifier.issn1053-587X
dc.identifier.issn1941-0476
dc.identifier.doi10.1109/TSP.2014.2307838
dc.identifier.urihttp://hdl.handle.net/10754/575713
dc.description.abstractIn multiple-input multiple-output (MIMO) radar settings, it is often desirable to transmit power only to a given location or set of locations defined by a beampattern. Transmit waveform design is a topic that has received much attention recently, involving synthesis of both the signal covariance matrix,, as well as the actual waveforms. Current methods involve a two-step process of designing via iterative solutions and then using to generate waveforms that fulfill practical constraints such as having a constant-envelope or drawing from a finite alphabet. In this paper, a closed-form method to design for a uniform linear array is proposed that utilizes the discrete Fourier transform (DFT) coefficients and Toeplitz matrices. The resulting covariance matrix fulfills the practical constraints such as positive semidefiniteness and the uniformelemental power constraint and provides performance similar to that of iterative methods, which require a much greater computation time. Next, a transmit architecture is presented that exploits the orthogonality of frequencies at discrete DFT values to transmit a sum of orthogonal signals from each antenna. The resulting waveforms provide a lower mean-square error than current methods at a much lower computational cost, and a simulated detection scenario demonstrates the performance advantages achieved.
dc.description.sponsorshipThis work was supported by a grant from the Office of Competitive Research Funding (OCRF) at King Abdullah University of Science and Technology (KAUST). This work will be presented in part at the IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Florence, Italy, May 2014.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.titleFourier-Based Transmit Beampattern Design Using MIMO Radar
dc.typeArticle
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentCommunication Theory Lab
dc.identifier.journalIEEE Transactions on Signal Processing
kaust.personLipor, John
kaust.personAhmed, Sajid
kaust.personAlouini, Mohamed-Slim


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