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RETRACTED: Zhang et al. A Novel Framework for Reconstruction and Imaging of Target Scattering Centers via Wide-Angle Incidence in Radar Networks. <i>Sensors</i> 2025, <i>25</i>, 6802.

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Long-Term Coherent Integration Algorithm for High-Speed Target Detection.

Yao He1, Guanghui Zhao2, Kai Xiong3

  • 1Guangzhou Institute of Technology, Xidian University, Guangzhou 510555, China.

Sensors (Basel, Switzerland)
|April 27, 2024
PubMed
Summary
This summary is machine-generated.

This study introduces an improved algorithm for radar detection of high-speed targets, enhancing coherent integration by correcting range walk effects and avoiding blind-speed sidelobe issues for better performance.

Keywords:
coherent detectionhigh-speed targetrange walk (RW) correctionvelocity estimation

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Area of Science:

  • Radar signal processing
  • High-speed target detection

Background:

  • Long-term coherent integration (CI) improves radar detection of high-speed targets.
  • Range walk (RW) effect from high-speed motion degrades detection performance.

Purpose of the Study:

  • To propose an improved algorithm for enhanced radar detection performance.
  • To address the range walk effect and blind-speed sidelobe (BSSL) issues.

Main Methods:

  • Developed an improved algorithm based on the modified Radon inverse Fourier transform (IMRIFT).
  • Employed parameter searching for velocity estimation and designed a compensation function for RW and Doppler ambiguity.
  • Proposed a fast IMRIFT-based method considering 2D frequency domain characteristics for computational efficiency.

Main Results:

  • The IMRIFT algorithm effectively corrects range walk and mitigates BSSL effects.
  • Achieved improved detection performance with low computational complexity.
  • The fast method balances computational cost and detection capacity.

Conclusions:

  • The proposed IMRIFT algorithm and its fast variant significantly enhance radar detection capabilities for high-speed targets.
  • These methods offer effective solutions for range walk and BSSL problems in radar systems.