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Range Dividing MIMO Waveform for Improving Tracking Performance.

Eun-Hee Kim1, Han-Saeng Kim2, Ki-Won Lee2

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Summary

This study introduces a novel Multiple-Input Multiple-Output (MIMO) radar method. It enhances angular accuracy by spreading interference signals outside range bins, improving radar performance for detecting air targets.

Keywords:
MIMO radarpulse doppler radarradar waveforms

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Area of Science:

  • Radar Systems Engineering
  • Signal Processing
  • Electromagnetics

Background:

  • Multiple-Input Multiple-Output (MIMO) radar enhances performance by sharing frequency bands.
  • Waveform orthogonality is crucial for MIMO radar functionality.
  • Existing methods achieve orthogonality via time, frequency, or code domain multiplexing.

Purpose of the Study:

  • To propose a novel method for improving MIMO radar angular accuracy.
  • To address the challenge of waveform orthogonality in pulse Doppler radars.
  • To enhance the detection of air targets in specific scenarios.

Main Methods:

  • A new MIMO radar technique is presented.
  • Interference signals are spread outside the range bins of interest.
  • Pulse repetition frequency is modified under specific constraints.

Main Results:

  • The proposed method effectively improves MIMO radar angular accuracy.
  • Additional gains are achieved through Doppler processing.
  • The technique is particularly effective for a small number of air targets.

Conclusions:

  • The developed MIMO radar method offers significant advantages for angular accuracy.
  • Limitations exist for scenarios with numerous targets or high clutter.
  • Further research may explore adaptations for more complex environments.