摘要
认知无线电是以软件无线电为基础的一种智能无线通信系统,它能自适应周围环境的变化,动态识别未被占用的合法频谱,在空闲频谱上传输信号且不会对合法用户造成有害干扰。本文介绍了认知无线电的定义和特点,分析了认知无线电的关键技术,给出了认知无线电在军事通信领域的应用优势。
Cognitive radio is an intelligent wireless communication system based on soft ware radio, it can adapt to the environment and dynamically identify unoccupied licensed spectrum, and operate on the idle spectrum without causing harnfful interference to licensed users. Firstly, this thesis explicates the correlative concept and characteristic of cognitive radio. Then, related key technologies are discussed. Finally, this paper analyzes the application advantage of cognitive radio in the military communication field.
出处
《科技视界》
2015年第29期102-103,共2页
Science & Technology Vision
关键词
认知无线电
频谱感知
频谱分配
Cognitive radio
Spectrum Sensing
Spectrum Allocation
