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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2016-09-23
Segment Noncoherent Integration Based Inverse Synthetic Aperture Radar Imaging Under Low Signal-to-Noise Ratio
By
Jianzhi Lin,

    Dr. Jianzhi Lin

    Automatic Target Recognition (ATR) National Defense Science and Technology Key Lab

    National University of Defense Technology

    China

    Homepage

Yue Zhang,

    Dr. Yue Zhang

    Automatic Target Recognition (ATR) National Defense Science and Technology Key Lab

    National University of Defense Technology

    China

    Homepage

Weixing Li,

    Dr. Weixing Li

    National University of Defense Technology

    China

    Homepage

Zeng Ping Chen

    Dr. Zeng Ping Chen

    Science and Technology on Automatic Target Recognition Laboratory

    National University of Defense Technology

    China

    Homepage

Progress In Electromagnetics Research M, Vol. 50, 105-115, 2016
doi:10.2528/PIERM16062305 | Google Scholar

Abstract
In this paper, a novel scheme for inverse synthetic aperture radar (ISAR) imaging under low signal-to-noise ratio (SNR) condition is proposed. The method is a preprocess of the high-resolution range profiles and relies on the oversampling in the azimuth direction. It divides the entire coherent processing interval into segments according to the down sampling factor. In each segment, original low SNR echoes are noncoherently integrated to obtain a new high SNR echo. With the new high SNR echoes, conventional methods for ISAR imaging can perform much better and obtain a better focused ISAR image. The presented algorithm has the advantage of effectiveness under low SNR condition and computational efficiency. Experimental results based on both the simulated and real radar data of an airplane verify the superiority of the proposed strategy.
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Citation
Jianzhi Lin, Yue Zhang, Weixing Li, and Zeng Ping Chen, "Segment Noncoherent Integration Based Inverse Synthetic Aperture Radar Imaging Under Low Signal-to-Noise Ratio," Progress In Electromagnetics Research M, Vol. 50, 105-115, 2016.
doi:10.2528/PIERM16062305
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