TY - JOUR
T1 - Motion Parameter Estimation and HRRP Construction for High-Speed Weak Targets Based on Modified GRFT for Synthetic-Wideband Radar with PRF Jittering
AU - Liu, Quanhua
AU - Guo, Jinpeng
AU - Liang, Zhennan
AU - Long, Teng
N1 - Publisher Copyright:
© 2001-2012 IEEE.
PY - 2021/10/15
Y1 - 2021/10/15
N2 - 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.
AB - 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.
KW - High-resolution range profile
KW - Parameter estimation
KW - Radon Fourier transform
KW - Synthetic-wideband radar
UR - http://www.scopus.com/inward/record.url?scp=85113851795&partnerID=8YFLogxK
U2 - 10.1109/JSEN.2021.3108053
DO - 10.1109/JSEN.2021.3108053
M3 - Article
AN - SCOPUS:85113851795
SN - 1530-437X
VL - 21
SP - 23234
EP - 23244
JO - IEEE Sensors Journal
JF - IEEE Sensors Journal
IS - 20
ER -