说明：  这个程序再matlab2012b版本上调试成功，以前在毕业设计的时候在网上找到的资料，希望对大家有用，认知无线电频谱检测技术的研究,有循环检测，周期性检测，仿真程序和结果
(This version of the program and then matlab2012b the successful commissioning, the data at the time of graduation design previously found on the Internet, we want to be useful, Cognitive radio frequency spectrum detection technology, there are cycle detection, periodic testing, simulation program and results)