Communications and Networking. 13th EAI International Conference, ChinaCom 2018, Chengdu, China, October 23-25, 2018, Proceedings

Research Article

Spectrum Modulation of Smart-Surfaces for Ultra High Frequency Radars

  • @INPROCEEDINGS{10.1007/978-3-030-06161-6_40,
        author={Kai Liu and Yang Wang and Qilong Song and Xi Liao},
        title={Spectrum Modulation of Smart-Surfaces for Ultra High Frequency Radars},
        proceedings={Communications and Networking. 13th EAI International Conference, ChinaCom 2018, Chengdu, China, October 23-25, 2018, Proceedings},
        proceedings_a={CHINACOM},
        year={2019},
        month={1},
        keywords={Radar Cross-Section (RCS) Spectrum modulation Metamaterial Remote identifications},
        doi={10.1007/978-3-030-06161-6_40}
    }
    
  • Kai Liu
    Yang Wang
    Qilong Song
    Xi Liao
    Year: 2019
    Spectrum Modulation of Smart-Surfaces for Ultra High Frequency Radars
    CHINACOM
    Springer
    DOI: 10.1007/978-3-030-06161-6_40
Kai Liu1, Yang Wang1,*, Qilong Song1, Xi Liao1
  • 1: Chongqing University of Posts and Telecommunications
*Contact email: wangyang@cqupt.edu.cn

Abstract

Smart surfaces are reconfigurable meta-materials whose electromagnetic characteristics can be altered for applications such as remote identification, stealth, etc. This paper introduces the spectrum modulation of smart-surfaces for long range radars. Applying controlling signals onto the tunable lumped elements loaded on smart-surfaces, modulations can be achieved on reflecting signals illuminating on smart surfaces. Changing the spectral characteristics of the modulated signals, radar receivers can only detect the limited information of the target. This paper introduces the operation mechanism of smart surfaces and analyzes two specific modulating signals, the square wave signal and the pseudo-random Gaussian white noise signal. The spectrum of reflecting signals will change accordingly, making it difficult for the radar receiver to detect. Simulations and results show that the proposed method can change the reflecting echo of the radar and reduce the probability of the target being detected.