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1 results

  • MIMO radar pseudo-orthogonal waveform generation by a passive 1 × M mode-mixing microwave cavity

  • Ettien L. Kpré, Cyril Decroze, Thomas Fromenteze
  • Journal:
    International Journal of Microwave and Wireless Technologies / Volume 9 / Issue 7 / September 2017
    Published online by Cambridge University Press:
    21 March 2017, pp. 1357-1363
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  • Multiple Input Multiple Output (MIMO) Radar has many advantages compared with conventional Radars including improved target parameters estimation, improved angular resolution while keeping a small number of antennas. Nevertheless, these advantages can be obtained when probing simultaneously the scattering matrix with orthogonal transmit signals. Recently, a passive orthogonal waveform generation technique was introduced using a 1 × M ports Mode-Mixing microwave cavity whose transfer functions are uncorrelated. This approach makes MIMO Radar system able to satisfy transmit beamforming constraint with a cost-efficient architecture. In this paper, more conceptual clarifications are brought and the orthogonality metrics are assessed. Furthermore, the proposed method is experimentally compared with a conventional MIMO Radar based on frequency hopping waveforms.