摘要
认知无线电的提出,能够有效的解决目前频谱资源匮乏的问题,频谱感知是认知无线电中必不可少的关键技术之一。着重对低功率复杂无线场景的频谱感知技术进行研究,在待测区域布置大量传感器或阵列天线,对授权用户的信息进行估计,得出区域性的干扰温度估计。
The cognitive radio can efficiently solve the problem of insufficient spectrum resource, and the spectrum detection is one of the key techniques in the cognitive radio. This paper mainly discusses the spectrum detection technique in the lowpower, complex, wireless scene, lay amount of sensor nodes or array antennas in the specified district, estimates the information of the primary user, and gets the regional estimate of interference temperature.
出处
《广东通信技术》
2009年第4期58-61,共4页
Guangdong Communication Technology
关键词
频谱感知
干扰温度
传感器
二维空间谱
spectrum detection
interference temperature
sensor
two-dimension space spectrum
