中文说明：< 跨度 style="font-size:12.0pt;line-height:150%;font-family："">它是信号的简单检测仪检测接收到的总能量内容超过指定的时间期限。它具有以下组件：-❑ 带通滤波器 — — 限制到感兴趣的频段接收到的信号的带宽。❑ 广场法装置 — — 正方形每届任期的接收到的信号。❑ 求和设备 — — 添加所有平方的值来计算能量。阈值是能量的需要比较的探测器所发现。能量大于门限值指示主用户的存在。
English Description：
&Lt span style = & quot; font- size:12.0pt;line-height : 150%; font family: & quot; & quot; & gt; it is a simple signal detector, which detects that the total energy content received exceeds the specified time limit. It has the following components: - bandpass filter - limits the bandwidth of the received signal to the band of interest. ❑ square method device - the signal received by each term of the square. ❑ summation device - adds the value of all squares to calculate energy. The threshold is the energy that needs to be compared to what the detector finds. Energy greater than the threshold indicates the presence of the primary user.