基于循环平稳检测的频谱感知方法探讨

Discussion on Spectrum Sensing Method Based on Cyclostationary Detection

笔者着重分析、研究了循环平稳特征检测法,并且与能量检测法的性能进行了对比,结果表明循环平稳检测的性能明显优于能量检测法。此外,讨论了循环平稳检测法检测统计量的选取,研究了循环谱峰均比的性能和特性,且对循环谱峰均比作为检测统计量的循环平稳检测法进行仿真研究。仿真研究数据表明,用循环谱峰均比作为检测统计量的循环平稳检测性能强于传统的循环平稳检测方法。

The cyclostationary feature detection method is emphatically analyzed and studied,and the performance of cyclostationary feature detection method is compared with that of energy detection method.The results show that the performance of cyclostationary feature detection method is obviously better than that of energy detection method.In addition,the selection of detection statistics for cyclostationary detection method is discussed,the performance and characteristics of cyclic peak-to-average ratio are studied,and the cyclostationary detection method with cyclic peak-to-average ratio as detection statistics is simulated.The simulation results show that the performance of cyclostationary detection using cyclic peak-to-average ratio as detection statistics is better than that of traditional cyclostationary detection methods.