认知无线电是当今频谱紧张情况下，最有效也是最直接的提高频谱利用率的方式。而该技术的核心之一是频谱感知。干扰温度是基于授权用户接收到进行的，克服了隐蔽终端等问题。-Cognitive radio is today s spectrum nervous cases, the most effective and most direct way to improve the utilization ratio of the spectrum. But the technology is one of the core of the spectrum perception. The temperature is based on the authorized user interference to receive, overcome the hidden problems such as terminal.