基于处理增益优势的雷达嵌入式通信波形性能评价方法  

Performance evaluation method of radar‑embedded communication waveform based on processing gain advantage

作　　者：李保国[1] 鹿旭 孙鹏 孙丽婷 Li Baoguo;Lu Xu;Sun Peng;Sun Liting(School of Electronic Science,National University of Defense Technology,Changsha 410073,Hunan,China)

机构地区：[1]国防科技大学电子科学学院,湖南长沙410073

出　　处：《航天电子对抗》2024年第1期36-43,共8页Aerospace Electronic Warfare

基　　金：湖南省自然科学基金资助项目(2029JJ10004)。

摘　　要：雷达嵌入式通信(REC)是一种使雷达与通信共用频谱的隐蔽通信方式,通过在高功率雷达后向散射回波中嵌入通信波形完成低截获概率(LPI)通信。传统的REC波形性能分析通常将通信可靠性和LPI性能分开考虑,忽略了其综合性能。基于处理增益提出了处理增益优势这一分析指标,对3种REC波形的通信可靠性能、LPI性能以及综合性能进行分析,为满足不同需求下REC通信的波形及参数选择提供了全新参考。仿真结果证实了利用处理增益优势分析REC波形性能的正确性和可行性。Radar-embedded communication(REC)is a covert communication method that enables radar and communication to share spectrum,and it achieves low probability of interception(LPI)communication by embedding communication waveforms in high-power radar backscattered echoes.Communication reliability and LPI performance are usually considered separately in the traditional REC waveform analysis,and thus,the comprehensive performance of REC waveforms is often ignored.The index of processing gain advantage is proposed based on the processing gain,and the communication reliability performance,LPI performance and comprehensive performance of three REC waveforms are analyzed,which provides a new reference for waveform and param‐eter selection of REC communication under different requirements.The simulation results confirm the correctness and feasibility of analyzing the performance of REC waveforms with the processing gain advantage.

关 键 词：雷达嵌入式通信 处理增益 处理增益优势 通信可靠性能 LPI性能 

分 类 号：TN974[电子电信—信号与信息处理] TN975[电子电信—信息与通信工程]