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Coherent Integration Algorithm for a Maneuvering Target Based on Frequency Spectrum Segment Processing
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DOI：10.1109/ACCESS.2020.3004074.png)
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Abstract
En 中文
This paper considers the coherent integration problem for a low-observable maneuvering target, where the velocity and acceleration result in range migration (RM) and Doppler frequency migration (DFM) within the coherent pulse interval. A novel method based on the frequency spectrum segment processing (FSSP) and the segmental Lv's distribution (SLVD) is proposed to realize the long-time coherent integration for multiple maneuvering targets. In this method, FSSP is proposed to eliminate the RM effect by dividing the received signal into several subband signals and expanding the range resolution of the subband signals. Then SLVD is applied to achieve the coherent integration of the subband signals and accumulate the energy of all the subband signals coherently. The proposed method can realize the coherent integration for multiple maneuvering targets without any prior knowledge of the targets' motion. The simulation and experimental results demonstrate the effectiveness of the proposed algorithm.
Keywords:
Maneuvering target detection
long-time coherent integration
frequency spectrum segment processing (FSSP)
segmental Lv's distribution (SLVD)
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