1.打开信号处理文档2.打开安装文件夹，点击setup安装；3.点sigalprocessing打开运行文档4.点击左下角文件夹找到数据文档中的sinet5Hz10Hz100Hz（此数据为5Hz与10hz正弦波的叠加），点击确认。低通滤波5在源文件夹中有matlab中信号生成的m文件，可以生成其他文件试一下-1 Open Signal Processing Document 2. Open the installation folder, click setup installation　3 points sigalprocessing Open Running Documents 4. Clicking on the left to find the data folder in the document sinet5Hz10Hz100Hz (this data is 5Hz with 10hz sine wave superposition), Click OK. Low-pass filter 5 in the source folder has generated signal in matlab m files, you can try to generate other documents