Chapter two talks about the currently situation and the originofnoise pollution come from in Macau.
第二章谈及澳门噪音污染的现状况与原因。
2
Mainly introducing the feature of the noise, the originof the noise, model of the noise, Median filtering and equilibrium of the gray.
主要介绍了噪声的特征、噪声的来源、噪声的模型、中值滤波、拉普拉斯锐化、灰度的均衡等。
3
By imitating of the design characters of the high frequency circuit, the origin and the classification of the noise interferences of the low field NMR circuit system are analyzed.