ISAR Imaging of High Speed Targets Based on LMSF Signal

Gao Zhao-Zhao; Xing  Meng-Dao; Zhang  Shou-Hong; Zhang Huan-Ying

doi:10.3724/SP.J.1146.2007.00894

Volume 30 Issue 12

Jan. 2011

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Article Navigation > Journal of Electronics & Information Technology > 2008 > 30(12): 2813-2817

Gao Zhao-Zhao, Xing Meng-Dao, Zhang Shou-Hong, Zhang Huan-Ying. ISAR Imaging of High Speed Targets Based on LMSF Signal[J]. Journal of Electronics & Information Technology, 2008, 30(12): 2813-2817. doi: 10.3724/SP.J.1146.2007.00894

Citation:

Gao Zhao-Zhao, Xing Meng-Dao, Zhang Shou-Hong, Zhang Huan-Ying. ISAR Imaging of High Speed Targets Based on LMSF Signal[J]. Journal of Electronics & Information Technology, 2008, 30(12): 2813-2817. doi: 10.3724/SP.J.1146.2007.00894

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ISAR Imaging of High Speed Targets Based on LMSF Signal

doi: 10.3724/SP.J.1146.2007.00894

Received Date: 2007-06-07
Rev Recd Date: 2007-11-19
Publish Date: 2008-12-19

Abstract

Abstract

To obtain the higher range resolution Inverse Synthetic Aperture Radar (ISAR) image, a method by combining the bandwidth of the Linearly Modulated Stepped Frequency (LMSF) radar signal in frequency domain is discussed. The model of high speed moving targets is proposed. In order to estimate the target motion parameters accurately, the method employing envelop alignment and Doppler center estimation is provided to fit the track of moving target. Based on the characteristic of target echo in ISAR, the original method of Doppler center estimation is ameliorated to increase the motion parameter estimation precision. Finally, the processing scheme is proposed, and the simulation results show that the method is effective.
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References

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