认知无线电中基于干扰温度的频谱探测技术

认知无线电的提出,能够在一定程度上提高频谱利用率,解决目前通信频谱资源紧缺的问题.频谱探测是认知无线电中的关键技术之一,通过频谱探测技术来检测授权用户的频谱空洞,以使得非授权用户能够有效利用.文章介绍了常用的基于干扰温度的探测模型以及频谱估计算法,进行了分析与总结,并且提出了目前频谱探测技术的不足之处.

Spectrum Estimation Technology based on Interference Temperature in Cognitive Radio

The cognitive radio can efficiently utilize the radio spectrum,which solves the present problems in lack of spectrum resources.Spectrum detection is one of the key techniques in the Cognitive Radio System.Through the spectrum detection,the spectrum holes of the primary users can be found,thus the secondary users could use them efficiently.What this paper tells of,analyzes and summarizes is some common detection model and spectrum estimation algorithm based on the interference temperature.And this paper also...