中文说明：使用db3小波进行输油管道泄漏检测与定位。数据是自己模拟生成的。并加入了高斯白噪声。通过对原始信号进行5层小波分解，最终定位出故障位置。
English Description：
Db3 wavelet is used to detect and locate oil pipeline leakage. The data is generated by self simulation. Gaussian white noise is added. The original signal is decomposed by 5-level wavelet transform, and the fault location is finally located.