基于极化脏星座的无线隐蔽通信教学实验设计  

Experiment Design of Wireless Covert Communication Based on Polarization Dirty Constellation

作　　者：吉小鹏 张秀再[1] JI Xiaopeng;ZHANG Xiuzai(School of Electronics and Information Engineering,Nanjing University of Information Science and Technology,Nanjing 210044,China)

机构地区：[1]南京信息工程大学电子与信息工程学院,南京210044

出　　处：《实验室研究与探索》2025年第1期30-34,49,共6页Research and Exploration In Laboratory

基　　金：教育部产学合作协同育人项目(220503924304255);安徽省高等学校省级质量工程项目(2023sx209)。

摘　　要：为了提高信号处理综合实践课程的前沿性、挑战性和创新性,培养学生多课程知识综合运用能力,设计了一种基于极化脏星座的无线隐蔽通信教学实验。采用星座旋转的隐蔽技术,将隐蔽信息映射到特殊的星座点,从而有效地提高抗检测性能;将极化编码作为隐蔽通信的编码方式,即使在高发射信号信噪比下也能保证较好的抗检测性能;在基于软件定义无线电技术的教学实验平台上进行仿真,验证基于极化脏星座的无线隐蔽通信方案的有效性。该教学实验帮助学生深入理解数字信号处理、信息论与编码、通信原理等课程中相关理论知识,提高学生的工程实践能力。To enhance the cutting-edge,challenging,and innovative aspects of comprehensive practice course on signal processing,and to cultivate students’abilities to utilize knowledge from multiple courses,a teaching experiment on wireless covert communication based on polarized dirty constellations is designed.The covert technique of constellation rotation is employed to map covert information to special constellation points,thereby effectively improves the undetectability.Polarization coding is used as the coding method for covert communication to ensure good undetectability even under high signal-to-noise ratios of the transmitted signals.Simulations are conducted on a teaching experimental platform based on software-defined radio technology to verify the effectiveness of the wireless covert communication scheme based on polarized dirty constellations.This experiment can help students gain a deep understanding of the theoretical knowledge related to digital signal processing,information theory and coding,and communication principles in their courses,and improve their engineering practice capabilities.

关 键 词：极化编码 星座旋转 隐蔽通信 香农极限 教学实验 

分 类 号：TN014[电子电信—物理电子学] G642.0[文化科学—高等教育学]