国外留学的朋友们学习matlab的时候大多数都需要进行消除样品噪声的作业（或者实验） 这个是成功的样品 只需要按照你作业的所给数据稍加改动即可完成-Foreign friends abroad to learn matlab Most of the time needed to eliminate the noise sample job (or test) this sample is successful you only need to follow the job can be completed to the data is modified