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Feedback beamforming technique for receiving multipath coherent signals

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Abstract

A novel feedback beamformer is proposed for receiving multipath coherent signals. First, a subtraction-based minimum variance distortionless response beamformer is utilized to obtain an estimation of the desired signal. Then its output is fed back to the original full aperture array where a minimum mean square error (MMSE) beamformer is applied. Due to multipath-matched feature of the MMSE beamformer, the novel feedback beamformer can combine multipath signals without aperture loss. Two feedback schemes are proposed and their effectiveness is verified via simulation.

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Authors and Affiliations

  1. National Digital Switching System Engineering and Technology Research Center, Zhengzhou, China

    Cheng Wang

  2. Department of Electronic Engineering, Tsinghua University, Beijing, China

    Jun Tang

Authors
  1. Cheng Wang
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  2. Jun Tang
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Correspondence to Cheng Wang.

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Wang, C., Tang, J. Feedback beamforming technique for receiving multipath coherent signals. Multidim Syst Sign Process 29, 1449–1457 (2018). https://doi.org/10.1007/s11045-017-0509-5

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  • DOI: https://doi.org/10.1007/s11045-017-0509-5

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