Volume 7 Issue 6
Feb.  2019
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Article Contents
Ming Jing, Zhang Xiaoling, Pu Ling, Shi Jun. PSF Analysis and Ground Test Results of a Novel Circular Array 3-D SAR System[J]. Journal of Radars, 2018, 7(6): 770-776. doi: 10.12000/JR18068
Citation: Ming Jing, Zhang Xiaoling, Pu Ling, Shi Jun. PSF Analysis and Ground Test Results of a Novel Circular Array 3-D SAR System[J]. Journal of Radars, 2018, 7(6): 770-776. doi: 10.12000/JR18068

PSF Analysis and Ground Test Results of a Novel Circular Array 3-D SAR System

doi: 10.12000/JR18068
Funds:  The National Natural Science Foundation of China (61571099), The China Postdoctoral Science Foundation (2015M570778)
  • Received Date: 2018-09-03
  • Rev Recd Date: 2018-12-19
  • Publish Date: 2018-12-28
  • Array Synthetic Aperture Radar (ASAR) system radar imaging field has gained attention because of its three-dimensional (3-D) imaging ability. A novel Circular Array SAR (CASAR) system is employed for 3-D high-resolution radar imaging to overcome the drawbacks exhibited by linear array SAR in high-resolution imaging and by circular SAR in side-lobe suppression. Point Spread Function (PSF) model based on the CASAR system is derived, and the advantages of the new configuration of the circular array in 3-D imaging are theoretically analyzed. Prototype CASAR experimental system is built on the basis of the abovementioned analysis. PSF simulation experiments and outdoor 3-D CASAR imaging experiments under outdoor conditions are performed to verify performance of the CASAR system in 3-D SAR imaging. Compared imaging results acquired using linear array SAR, circular SAR, and CASAR system proves that the CASAR system has high-resolution 3-D SAR images and demonstrates effective side-lobe suppression capability.

     

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