中文说明：
包含三个M文件，程序为本人自行编译完成，Demo中设有仿真信号验证，并经本人实际齿轮箱信号（轴承外圈故障）测试，经包络分析结果显示能够有效定位轴承外圈故障频率。 亲测可用。
English Description：
Contains three M file, the program compiled for myself, in the Demo with the simulation signal, and the the actual gear box (bearing outer ring fault) test signal, the envelope analysis results show that the fault frequency can effectively locate the bearing outer ring._ pro is available.