TY - GEN
T1 - A Coherent Integration Method for High-speed Targets under low SNR Conditions in Distributed Coherent Aperture Radar
AU - Yan, Jishan
AU - Fan, Huayu
AU - Cheng, Shijian
AU - Li, Wenji
AU - Ren, Lixiang
AU - Liu, Quanhua
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - To realize the coherent integration for high-speed targets under the low signal-to-noise ratio (SNR) condition, an integration method based on Generalized Radon-Fourier Transform (GRFT) is proposed in this paper. Firstly, an accurate echo model for high-speed targets in distributed coherent aperture radar (DCAR) is established, which considers intra-Doppler modulation caused by high-speed motion. Secondly, a coherent integration method performed by GRFT is analyzed, where the compensation terms for high-speed targets are constructed. By GRFT, the target energy distributed in multi-frames can be integrated, which improves SNR to obtain coherent parameters (CPs) estimation under low SNR conditions. Finally, simulation examples are given to demonstrate the effectiveness of the proposed method.
AB - To realize the coherent integration for high-speed targets under the low signal-to-noise ratio (SNR) condition, an integration method based on Generalized Radon-Fourier Transform (GRFT) is proposed in this paper. Firstly, an accurate echo model for high-speed targets in distributed coherent aperture radar (DCAR) is established, which considers intra-Doppler modulation caused by high-speed motion. Secondly, a coherent integration method performed by GRFT is analyzed, where the compensation terms for high-speed targets are constructed. By GRFT, the target energy distributed in multi-frames can be integrated, which improves SNR to obtain coherent parameters (CPs) estimation under low SNR conditions. Finally, simulation examples are given to demonstrate the effectiveness of the proposed method.
KW - Generalized Radon-Fourier Transform (GRFT)
KW - High-speed targets
KW - distributed coherent aperture radar (DCAR)
UR - http://www.scopus.com/pages/publications/86000026924
U2 - 10.1109/ICSIDP62679.2024.10869255
DO - 10.1109/ICSIDP62679.2024.10869255
M3 - Conference contribution
AN - SCOPUS:86000026924
T3 - IEEE International Conference on Signal, Information and Data Processing, ICSIDP 2024
BT - IEEE International Conference on Signal, Information and Data Processing, ICSIDP 2024
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2nd IEEE International Conference on Signal, Information and Data Processing, ICSIDP 2024
Y2 - 22 November 2024 through 24 November 2024
ER -