Volume 13 Issue 1
Feb.  2024
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Article Navigation >  Journal of Radars  > 2024  >  13(1): 150-159
ZHOU Qunyan, WANG Siran, DAI Junyan, et al. Simultaneous direction of arrival estimation and radar cross-section reduction based on space-time-coding digital metasurfaces[J]. Journal of Radars, 2024, 13(1): 150–159. doi: 10.12000/JR23216
Citation: ZHOU Qunyan, WANG Siran, DAI Junyan, et al. Simultaneous direction of arrival estimation and radar cross-section reduction based on space-time-coding digital metasurfaces[J]. Journal of Radars, 2024, 13(1): 150–159. doi: 10.12000/JR23216
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Simultaneous Direction of Arrival Estimation and Radar Cross-section Reduction Based on Space-time-coding Digital Metasurfaces

doi: 10.12000/JR23216

  • State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210000, China

Funds:  The National Key Research and Development Program of China (2023YFB3811502, 2018YFA0701904), The National Science Foundation (NSFC) for Distinguished Young Scholars of China (62225108), The National Natural Science Foundation of China (62288101, 62201139), The Program of Song Shan Laboratory (Included in the Management of Major Science and Technology Program of Henan Province) (221100211300-02, 221100211300-03), The 111 Project (111-2-05), The Jiangsu Province Frontier Leading Technology Basic Research Project (BK20212002), The Fundamental Research Funds for the Central Universities (2242022k6003), and The Southeast University-China Mobile Research Institute Joint Innovation Center (R202111101112JZC02)
More Information
  • Corresponding author: DAI Junyan, junyand@seu.edu.cn; CHENG Qiang, qiangcheng@seu.edu.cn
  • Received Date: 2023-11-13
  • Rev Recd Date: 2023-12-26
    • Available Online: 2023-12-29
  • Publish Date: 2024-01-04
    Abstract
  • The traditional Direction Of Arrival (DOA) estimation is typically based on phased array antenna systems. However, it is greatly limited by the high hardware cost for applications in various fields. In addition, conventional phased array antennas also suffer from the high Radar Cross-Section (RCS), which cannot be employed for stealth purposes. To address these issues, we propose a new algorithm based on the Space-Time-coding (STC) strategy for simultaneous DOA estimation and RCS reduction, which is further experimentally verified using a metasurface in the millimeter band. The results demonstrate the excellent performance of the proposed DOA method with an error below 1°. Meanwhile, a good RCS reduction of over 10 dB is achieved in the bandwidth of interest. The proposed algorithm paves a new path to integrating DOA estimation and RCS reduction with a single metasurface, with the advantages of low cost and good performance.

     

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