Integrated Radar Jamming Signal Generation and Secure Wireless Communication Based on Photonics at Ka-Band

Abstract

In this article, we propose a novel photonic-based integrated scheme that simultaneously achieves radar jamming signal generation and chaotic encrypted wireless communication. The velocity deception jamming signals are generated with a high spurious suppression ratio of 31.9–33.2 dB. Additionally, the range deception jamming has been efficiently executed. Simultaneously, an encrypted 64-quadrature amplitude modulation (64QAM) OFDM signal with a key space of $10^{50}$ is transmitted over a 1.5-m wireless link, meeting the hard decision forward error correction (HD-FEC) threshold of $3.8\times 10^{-3}$ , corresponding to a net rate of 9.9 Gbit/s. In addition, a maximum modulation error ratio (MER) of 21.4 dB is achieved below the error vector magnitude (EVM) threshold of 9%. The proposed scheme effectively combines the capabilities of degrading enemy radar detection and enhancing one’s wireless communication security, which may be a potential application for electronic countermeasures in the future.