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.
Mainly introducing the feature of the noise, the origin of 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
As the radial vibration of stator is the origin of the acoustic noise of SRMs, model analysis of stator vibration is the effective way to the research for low acoustic noise.