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Burg-Aided 2D MIMO Array Extrapolation for Improved Spatial Resolution.

Muge Bekar1,2, Ali Bekar1,3, Anum Pirkani1

  • 1Department of Electronic, Electrical and Systems Engineering, University of Birmingham, Birmingham B15 2TT, UK.

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Summary
This summary is machine-generated.

This study introduces a 2D multiple-input multiple-output (MIMO) array extrapolation technique using the Burg algorithm. This method enhances angular resolution while reducing physical size and antenna elements for radar systems.

Keywords:
2D MIMO antennaBurg algorithmBurg-aided MIMOautoregressive method

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Area of Science:

  • Electrical Engineering
  • Signal Processing
  • Antenna Theory

Background:

  • Traditional 2D Multiple-Input Multiple-Output (MIMO) arrays face limitations in angular resolution and physical size.
  • Achieving higher resolution often requires a larger number of antenna elements, increasing complexity and cost.

Purpose of the Study:

  • To propose and evaluate a 2D MIMO array extrapolation method using the Burg algorithm.
  • To demonstrate the capability of reducing the physical size and number of antenna elements in MIMO arrays.
  • To achieve higher angular resolution compared to conventional 2D MIMO virtual arrays.

Main Methods:

  • Extrapolation of a 2D MIMO array using the Burg algorithm.
  • Performance and limitation analysis via simulation and experimentation at 77 GHz.
  • Development of an experimental methodology for acquiring 3D data (range, azimuth, elevation) using a 1D MIMO radar.

Main Results:

  • The proposed Burg algorithm extrapolation successfully enhances angular resolution beyond 2D MIMO virtual arrays.
  • Significant reduction in the physical size and number of antenna elements of the MIMO array is achieved.
  • Experimental validation at 77 GHz confirms the performance and provides insights into limitations.

Conclusions:

  • The Burg algorithm offers an effective approach for extrapolating 2D MIMO arrays to improve angular resolution.
  • The method enables the design of more compact and element-efficient MIMO radar systems.
  • The experimental setup allows for pre-fabrication assessment of antenna response at desired frequencies.