Long-time coherent integration of high-speed maneuvering targets

Yuqing Feng; Renhong Xie; Peng Li; Yu Yang; Jinghao Yu

doi:10.1117/12.3022799

28 March 2024 Long-time coherent integration of high-speed maneuvering targets

Yuqing Feng, Renhong Xie, Peng Li, Yu Yang, Jinghao Yu

Proceedings Volume 13091, Fifteenth International Conference on Signal Processing Systems (ICSPS 2023); 130910D (2024) https://doi.org/10.1117/12.3022799
Event: Fifteenth International Conference on Signal Processing Systems (ICSPS 2023), 2023, Xi’an, China

Abstract

When observing high-speed maneuvering targets, the relative motion between the target and the radar will produce linear range walking, range bending, Doppler spread and other phenomena, resulting in the failure to obtain higher SNR gain by prolonging the coherent integration time. A coherent integration algorithm based on Wigner Ville Distribution (WVD) is proposed for target detection with uniform acceleration in any direction. The algorithm first uses the second-order Keystone transform and combines the linear detection algorithm to correct range walking and range bending, then introduces the delay variable and constructs a third-order matrix based on the traditional WVD algorithm to convert the echo signal to the time-frequency domain plane for third-order phase parameter estimation, and compensates the third-order phase coefficient, and then uses the LVD algorithm to estimate and compensate its second-order phase coefficient to achieve the correction of Doppler spread. The algorithm has excellent parameter estimation performance in a strong noise environment and has lower algorithm complexity compared with the traditional full-dimension search algorithm.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yuqing Feng, Renhong Xie, Peng Li, Yu Yang, and Jinghao Yu "Long-time coherent integration of high-speed maneuvering targets", Proc. SPIE 13091, Fifteenth International Conference on Signal Processing Systems (ICSPS 2023), 130910D (28 March 2024); https://doi.org/10.1117/12.3022799

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KEYWORDS

Detection and tracking algorithms

Target detection

Radar sensor technology

Radar signal processing

Doppler effect

Radar

Simulations

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