卫星隐蔽通信技术综述

摘要：卫星网络中隐蔽通信技术能够为泛在信息传输提供高层级的通信安全保障。基于此，对卫星通信网络的隐蔽通信技术进行系统综述。首先，简要介绍了卫星通信网络架构、卫星隐蔽通信典型场景、隐蔽通信的基本模型，以及卫星通信网络模型和性能指标。分别从信息编码、波形设计和传输策略等方面回顾了现有隐蔽通信技术研究的最新进展。最后，展望了卫星隐蔽通信技术的若干未来研究方向。

关键词：卫星通信；隐蔽通信；信息编码；波形设计；传输策略

Abstract: In satellite networks, covert communication technology can provide high-level communication security for ubiquitous information transmission. To this end, this paper provides a systematic overview of covert communications in satellite communication networks. Firstly, this paper briefly introduces the satellite communication network architecture, typical satellite covert communication scenarios, fundamental covert communication model as well as satellite communication network model and covert performance metrics. Then, the latest progress in existing covert communication research is reviewed from different aspects of information encoding, waveform design, and transmission strategies. Finally, several future research directions are provided for satellite covert communications.

Keywords: satellite communication; covert communication; information encoding; waveform design; transmission strategy