Coherent Detection for Weak Target Based on Frequency Phase Compensation Function

This paper addresses the long-time coherent integration detection problem for a weak maneuvering target, involving linear range migration (LRM), range curvature (RC), and Doppler frequency migration (DFM). To solve the above problems, an efficient coherent integration method based on frequency phase...

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Bibliographic Details
Main Authors: Lin, Lanjin, Sun, Guohao, Cheng, Ziyang, He, Zi-Shu
Format: Conference Proceeding
Language:English
Subjects:
Acceleration
Coherence
coherent integration
Computational efficiency
detection performance
Doppler frequency migration
frequency phase compensation function
linear range migration
Phase frequency detectors
Radar detection
range curvature
Signal to noise ratio
Simulation
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Summary:This paper addresses the long-time coherent integration detection problem for a weak maneuvering target, involving linear range migration (LRM), range curvature (RC), and Doppler frequency migration (DFM). To solve the above problems, an efficient coherent integration method based on frequency phase compensation function process (FPCFP) is proposed. By jointly searching the unknown motion parameters in velocity and acceleration domains, the FPCFP algorithm not only can eliminate LRM, RC, and DFM simultaneously, but also can realize the coherent integration. Compared with the existing algorithms, the proposed method achieves a better detection probability in a low signal-to-noise ratio (SNR) environment and ensures high computational efficiency. Several experiments are performed to verify the effectiveness of the presented approach.
ISSN:2375-5318
DOI:10.1109/RadarConf2043947.2020.9266461