摘要：频谱检测技术是认知无线电中极其重要的环节。而协作式的频谱检测由于其良

好的检测性能日益受到人们的关注。基于能量检测，协作频谱检测的算法主要有：与

(AND)算法、或(OR)算法、计数算法、分区算法、似然比算法、线性加权算法和分布式

无线通信系统(DWCS)算法。分析表明，这些协作检测算法能够改善系统的检测性能、

减低干扰冲突、提高频谱利用率。-Knot current spectrum within the detection area, the main sorting and several methods of analysis and based on the channel fading, noise and other factors on test performance spectrum, proposed a physical layer testing, MAC (MediumAccess Control, Media Access Control) layer and multi-user collaboration adaptive detection test key technical problems that exist in their analysis and processing methods, and the detection performance of the qualitative and quantitative analysis and discussion.