Author(s)

Jianqiu Xu, Baoguo Li, Zhitao Huang and Jing Lei

Corresponding Author

Baoguo Li

ABSTRACT

Radar-embedded communication (REC) is a covert communication method for hiding communication information in radar echo signals. The key in this field is the waveform design. However, the communication waveform constructed by the traditional strategy is not orthogonal. To solve this problem, this paper proposes an Improved Weighted-Combining (IWC) strategy based on the traditional Weighted-Combining (WC) strategy. Performance of the proposed waveform design strategy is presented in terms of the so-called “low probability of intercept (LPI) metric” and symbol error ratio (SER). The improved strategy demonstrates the best LPI performance while improves reliability performance significantly.

KEYWORDS

Covert Communication, Radar-Embedded Communications, Waveform Design