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ISAR Image Algorithm Using Time-Domain Scattering Echo Simulated by TDPO Method
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DOI：10.1109/LAWP.2020.3000660.png)
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摘要
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In this letter, we propose an inverse synthetic aperture radar (ISAR) imaging method using time-domain (TD) scattering echo simulated by time-domain physical optics (TDPO) method. First, the TD pulse plane wave is taken as the incident wave and the transient scattering echo data matrix is obtained by using the TDPO method under different look angles of the target. Then, demodulation, pulse compression, and azimuth inverse fast Fourier transform (FFT) are performed on the echo data matrix to obtain the ISAR image under small bandwidth small angle. In this letter, considering the fact of TD pulse signals emitted by radar, electromagnetic scattering modeling method is adopted to obtain more accurate TD scattering echoes. This method combines the electromagnetic scattering algorithm and radar imaging algorithm effectively and is closer to practical application. Finally, ISAR images are given to verify the feasibility and fidelity of the presented method.
Keyword:
Time-domain analysis
Radar imaging
Electromagnetic scattering
Imaging
Fourier transforms
Electromagnetic scattering
inverse synthetic aperture radar (ISAR)
physical optics
time domain (TD)
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4.8
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被引数:
2.8W
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The Study on Near-Field Scattering of a Target Under Antenna Irradiation by TDSBR Method.png)
IEEE ACCESS
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