由两组已知的振动波形数据（excel表格形式），运用matlab生成对应的波形，利用FFT生成频谱图。要求将所有图像生成在一个图框下。包含设计文档和代码(Two groups of known vibration waveform data (excel form), using MATLAB to generate the corresponding waveform, using FFT to generate spectrum. Contains document reports and code)