基于CMMB信号频谱感知和参数估计的研究

Research on Signal Spectrum Sensing and Parameter Estimation Based on CMMB

为了挖掘广播电视超高频(UHF)频谱资源的重复利用,以认知无线电研究为基础,对比了3种常用非合作式下基于发射机的频谱感知方法的优劣点。主要介绍了灵敏度较高的循环平稳特征检测算法,并完成了针对中国移动多媒体广播(CMMB)信号频谱感知的MATLAB仿真,在GUI界面实现了效果演示。

In order to mine the spectrum resources on radio and TV ultra-high frequency （UHF）, the advantages and disadvantages of the three common spectrum sensing methods are compared based on the transmitter under non-cooperation pattern in cognitive radio. The algorithm of cyclostationary feature detection is mainly introduced. The simulation of spectrum sensing about China mobile multimedia broadcast （CMMB） on MATLAB is finished. Effect demonstration is achieved on GUI.