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Transmit signal design in colocated MIMO radar without covariance matrix optimization

Imani, S ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1109/TAES.2017.2686618
  3. Abstract:
  4. In this paper, the problem of the waveform design for colocated multiple-input multiple-output (MIMO) radars is considered in two parts. In the first part, we design transmit waveform in order to approximate the desired beampattern with low number of samples in the transmitter. Unlike the traditional waveform design methods, in our solution, waveforms are designed for a specific number of samples. Also, the constant envelope constraint that is an important practical constraint is considered. In the second part, we jointly design the transmit waveform and receive filter by a sequential algorithm, considering a priori information of target and interference angle locations. We have evaluated the performance of the proposed algorithms via numerical simulations and shown that the proposed algorithm in the first part is able to approximate the desired beampattern with low number of samples. Also, our method in the second part achieves better signal-to-interference-plus-noise ratio performance compared with the existing active sensing array methods (e.g., phased-array and correlated MIMO radars). © 2017 IEEE
  5. Keywords:
  6. Covariance matrix ; Design ; MIMO systems ; Optimization ; Radar ; Signal to noise ratio ; Waveform analysis ; Colocated MIMO radars ; Interference angle ; Matrix optimization ; Multiple input multiple output (MIMO) radars ; Number of samples ; Priori information ; Sequential algorithm ; Signal to interference plus noise ratio ; MIMO radar
  7. Source: IEEE Transactions on Aerospace and Electronic Systems ; Volume 53, Issue 5 , 2017 , Pages 2178-2186 ; 00189251 (ISSN)
  8. URL: https://ieeexplore.ieee.org/document/7885596