【摘要】感知无线电可以自动感知外界的无线环境并能调整系统参数以适应环境的变化。频谱检测是感知无线电的关键

技术之一，要求感知用户可靠、快速地检测频谱空洞。文中按照主用户发射端检测和主用户接收端检测，对当前的主要频谱检测

算法进行了分类，并对频谱检测算法进行了讨论和对比研究，给出了在IEEE802．22和频谱池结构中的频谱检测的具体应用。-Abstract cognitive radio can automatically sense the external environment and the wireless system parameters can be adjusted to adapt to environmental changes. Perception of the radio frequency spectrum detection is one of the key, requiring the user perceived reliability, rapid detection of spectrum holes. The article according to the main transmitter detects the user and primary user detection receiver, the main spectrum of the current detection algorithms for classification, and spectral detection algorithms are discussed and compared, and the spectrum is given in IEEES02.22 pool structure spectral detection of the specific application.