Fast Forward Scatter Shadow Inverse Synthetic Aperture Radar Imaging Algorithm Based on Phase Compensation

Liu Chang-jiang; Hu Cheng; Zeng Tao; Zhou Chao

doi:10.11999/JEIT141576

Volume 37 Issue 10

Sep. 2015

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Article Navigation > Journal of Electronics & Information Technology > 2015 > 37(10): 2294-2299

Chen Zhe, Wang Hongyu, Qiu Tianshuang. The Study of period adaptive filter for lptv system[J]. Journal of Electronics & Information Technology, 2003, 25(7): 884-891.

Citation:

Liu Chang-jiang, Hu Cheng, Zeng Tao, Zhou Chao. Fast Forward Scatter Shadow Inverse Synthetic Aperture Radar Imaging Algorithm Based on Phase Compensation[J]. Journal of Electronics & Information Technology, 2015, 37(10): 2294-2299. doi: 10.11999/JEIT141576

Chen Zhe, Wang Hongyu, Qiu Tianshuang. The Study of period adaptive filter for lptv system[J]. Journal of Electronics & Information Technology, 2003, 25(7): 884-891.

Citation:

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Fast Forward Scatter Shadow Inverse Synthetic Aperture Radar Imaging Algorithm Based on Phase Compensation

doi: 10.11999/JEIT141576

1.
(School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China)
2.

Funds:

The National Natural Science Foundation of China (61172177)

Received Date: 2014-12-10
Rev Recd Date: 2015-05-29
Publish Date: 2015-10-19

Abstract

Abstract

The numerical calculation of forward scatter Shadow Inverse Synthetic Aperture Radar (SISAR) imaging is usually performed by the Fresnel numerical integral which is complicated and time consuming. To improve the calculation speed, the fast SISAR imaging method is investigated. Firstly, a fast imaging method based on the Fast Fourier Transform (FFT) is proposed while the phase errors introduced by the FFT are compensated. Then, through the analysis of the spectrum on the motion compensated signal, the sampling law for SISAR imaging is given, indicating that signals used for imaging can be sampled at a rate much lower than the Nyquist sampling rate. Simulation results show that the proposed fast imaging method can give accurate profiles and significantly reduce the computation, which is of practical meaning in engineering application.
- Forward scatter radar,
- Shadow Inverse Synthetic Aperture Radar (SISAR),
- Fast Fourier Transform (FFT),
- Phase compensation,
- Nyquist sampling rate

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References(17)

References

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