Study on Covert Communication Based on Multi-Domain Integration in Complex Electromagnetic Environment

As an important carrier of battlefield information acquisition and transmission, electromagnetic spectrum space has become the key for future battlefield to control information superiority. In order to achieve the mastery of information in the future electromagnetic spectrum space, covert communication has become a research hotspot. This paper explores the covert communication technology for complex electromagnetic environment. It introduces the main research directions in the field of covert communication and typical covert communication systems at home and abroad. In this paper, the multi-dimensional characteristics of signal such as time domain, frequency domain and code domain are used. The modulation technology is combined with the statistical characteristics of amplitude, frequency and phase. Then the covert communication system based on multi-domain integration for complex electromagnetic environment is established, so as to enhance the ability of information covert transmission. Furthermore, a compound dimension information authentication method is established to improve the anti cracking and anti intrusion level of the covert communication system. Finally, the main performance of the new scheme is verified by simulation, which lays a technical foundation for the subsequent application of the algorithm.