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2025-07-01
Research on Coherent Integration for Maneuvering Target Detection Based on KT-ITDCI
By
Progress In Electromagnetics Research C, Vol. 157, 85-93, 2025
Abstract
In order to enhance the detection capability of small targets, long-term coherent integration (LTCI) is commonly employed. The core idea of LTCI is to accumulate target energy over an extended observation period, thereby enhancing the signal-to-noise ratio (SNR) of the target signal. However, for maneuvering targets, defocusing may occur due to range migration (RM) and Doppler frequency migration (DFM). In this study, a novel method based on the keystone transform and improved 3-D coherent integration (KT-ITDCI) for maneuvering target detection is proposed. KT-ITDCI not only eliminates the RM induced by unambiguous velocity through KT, but also compensates for residual RM and DFM in the KT-processed echoes via ITDCI, ultimately achieving coherent integration. Simulation results show that, compared with the TDCI method, KT-ITDCI significantly reduces computational complexity while maintaining comparable noise resistance. Furthermore, the effectiveness of the proposed method is further validated through processing and analyzing real measured radar data.
Citation
Aihua Li, Wei Liu, Yuhang Wang, Wenwen Xu, Jianyin Cao, and Hao Wang, "Research on Coherent Integration for Maneuvering Target Detection Based on KT-ITDCI," Progress In Electromagnetics Research C, Vol. 157, 85-93, 2025.
doi:10.2528/PIERC25041704
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