认知无线电技术的提出是为提高频谱利用率，而认知无线实现的关键技术是频谱感知，众所周知协作检测提高了衰落环境中认知用户系统检测的性能，该文章是基于协作检测提出新的检测方案，利用了双门限方法提高了系统性能，兼顾带宽有限和增强性能两个方面，是基于门限检测的协作检测性能优化的前提。对以后门限优化协作检测非常有用。-In this paper, we employ a double threshold method in energy detector to perform spectrum sensin

Spectrum sensing has been identified as a key enabling functionality to ensure that cognitive radios would not interfere with primary users, by reliably detecting primary user signals. Recent research studied spectrum sensing using energy de

many codes in inergy detection based spectrum sensing

认知无线电频谱感知技术单用户感知包括能量感知 、周期感知，介绍了相关感知优化，并仿真分析-Cognitive radio spectrum sensing technology single user perception including energy aware C, cycle perception, introduced the relevant perception optimization, and simulation analysis