The Method of Sub-apertures Space-frequency Processing for the Single-channel SAR Moving Target Detection

Liu  Shu-Jun; Yuan  Yun-Neng; Mao  Shi-Yi

doi:10.3724/SP.J.1146.2009.00796

Volume 32 Issue 8

Sep. 2010

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Liu Shu-Jun, Yuan Yun-Neng, Mao Shi-Yi. The Method of Sub-apertures Space-frequency Processing for the Single-channel SAR Moving Target Detection[J]. Journal of Electronics & Information Technology, 2010, 32(8): 1992-1996. doi: 10.3724/SP.J.1146.2009.00796

Citation:

Liu Shu-Jun, Yuan Yun-Neng, Mao Shi-Yi. The Method of Sub-apertures Space-frequency Processing for the Single-channel SAR Moving Target Detection[J]. Journal of Electronics & Information Technology, 2010, 32(8): 1992-1996. doi: 10.3724/SP.J.1146.2009.00796

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The Method of Sub-apertures Space-frequency Processing for the Single-channel SAR Moving Target Detection

doi: 10.3724/SP.J.1146.2009.00796

Liu Shu-Jun^{① 袁运能
,},
Yuan Yun-Neng,
Mao Shi-Yi

Received Date: 2009-05-25
Rev Recd Date: 2010-03-25
Publish Date: 2010-08-19

Abstract

Abstract

The space-frequency processing of sub-apertures that obtained from the single-antenna airborne SAR is proposed for the moving target detection. First the process of how to gain the sub-apertures is presented through the azimuth frequency processing. The sub-apertures that resemble the multi-channel are formed. Then the equivalent property for the space-time signal of the sub-apertures is particular analyzed. The echo signals of the sub-apertures gained in different synthesized center times are equal to the echo signals obtained from the same time and the different space positions. The time delay of the sub-aperture is used to gain the space information and the two-dimension signal model of the sub-apertures is established. Learned from the method of using multi-channels to suppress the clutter, the space-frequency adaptive processing of the sub-apertures is presented to realize the moving target detection and the clutter suppression. Finally, the simulation results demonstrate that the method is effective.
- Synthetic Aperture Radar (SAR),
- Moving Target Detection (MTD),
- Space-frequency adaptive processing of sub-apertures

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References(1)

References

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