为了提高合成孔径雷达(SAR)图像相干斑抑制能力，建立了二维双通道滤波器组多级结构的相干斑抑制模型。
In order to improve the capability of Synthetic Aperture Radar (SAR) speckle reduction, the speckle reduction model of a 2d two-channel filter bank multiscale structure is presented.
基于对双通道渣油气化喷嘴喷雾性能和炉内停留时间分布的研究，提出了炭黑颗粒的分布模型。
A distribution mod-el of soot particles has been proposed based on the atomization characteristics of twin-fluid gasification burner and the residence time distribution (RTD) of the gasifier.
应用推荐