Motion Parameter Estimation and HRRP Construction for High-Speed Weak Targets Based on Modified GRFT for Synthetic-Wideband Radar with PRF Jittering

Quanhua Liu, Jinpeng Guo, Zhennan Liang*, Teng Long

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

The synthetic-wideband and pulse repetition frequency jittering radar systems are receiving increasing attention due to the relatively low construction costs and good anti-jamming performance. However, the inter-pulse random hopping of the carrier frequency and pulse repetition frequency introduces challenges to the long-time coherent integration and motion parameter estimation of the high-speed weak targets for these radar systems. A modified generalized Radon Fourier transform for weak target detection and motion parameter estimation is proposed. The proposed method can achieve full coherent integration gain for the high-speed weak target and has a good parameter estimation accuracy. After the target motion has been well compensated, the well-focused high-resolution range profile of the target can be obtained by synthetic-wideband processing. The effectiveness of the proposed method is verified by Monte Carlo simulations. In addition, experimental data collected using an X-band radar system are processed and analyzed to illustrate the practical performance of the proposed method.

Original languageEnglish
Pages (from-to)23234-23244
Number of pages11
JournalIEEE Sensors Journal
Volume21
Issue number20
DOIs
Publication statusPublished - 15 Oct 2021

Keywords

  • High-resolution range profile
  • Parameter estimation
  • Radon Fourier transform
  • Synthetic-wideband radar

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Liu, Q., Guo, J., Liang, Z., & Long, T. (2021). Motion Parameter Estimation and HRRP Construction for High-Speed Weak Targets Based on Modified GRFT for Synthetic-Wideband Radar with PRF Jittering. IEEE Sensors Journal, 21(20), 23234-23244. https://doi.org/10.1109/JSEN.2021.3108053