认知无线电技术及在军事通信中的应用

摘要

The cognitive radio(CR)is a new concept following the software radio in the communication field,and it focu-ses on the adjusting the system running parameters on the basis of sensing surrounding. The concept of CR and its relation with software radio are described in this paper. Its structure and key technologies are introduced. The advantages of CR in the mili-tary communication and the challenge it is facing are analyzed. It has a positive role in upgrade construction of the communica-tion systems in China.%认知无线电是通信领域在软件无线电概念之后出现的又一新概念，其主要关注于系统通过感知操作环境的变化调整系统工作参数。叙述了认知无线电的概念及与软件无线电的关系，对其构架和关键技术进行了介绍，并分析了认知无线电在军事通信领域的优势及面临的挑战，对于我军通信系统的升级建设具有积极作用。