DS-ROCKY100-V01 170530

说明：  地理加权回归（GWR）matlab代码，亲测可用，该代码利用matlab实现了地理加权回归的代码，内附实际算例。(The matlab code of geographical weighted regression (GWR) is available for the test. The code uses MATLAB to realize the code of geographical weighted regression, with an actual calculation example.)

说明：  光栅法三维重建时设置不同频率生成4步相移图片，图片大小为768*1024(Raster 3d reconstruction generates 4 - step phase shift images)

说明：  灰色关联分析法，这种方法是进行关联分析的，本设计中为各指标和成绩的关联度大小排序的结果。(Gray correlation analysis method, this method is to carry out correlation analysis, this design is the result of ranking the correlation degree of each index and achievement.)

主要实现在simulink中的三段电流保护仿真(mainly about current protect in matlab simulink)

三相有源电力滤波器非线性滑模控制文章还不错(Nonlinear Sliding Mode Control of Three-phase Active Power Filter)

一个串口调试工具,可以同样看到串口的输入和输出情况,在实际调试中很有用-a serial debugging tools, can see the same serial input and output of the actual useful debugging

说明：  建立水声信道的射线模型在工程应用上有重要的意义。射线声学是把声波的 传播看作是一束无数条垂直于等相位面的射线的传播，每一条射线与等相位面相 垂直，称为声线。声线途经的距离代表波传播的路程，声线经历的时问为波传播 的时间。声线束所携带的能量即为波传播的声能量。与几何光学相似，射线声学 的描述方法给人直观的感觉，在一定的条件下，射线声学的数学运算也比较简捷， 由射线理论给出的声线图可以给声场以直观、形象的理解。 本模型可以准确的衡量声波在海洋中传播路径(Establishing ray model of underwater acoustic channel is of great significance in engineering application. X-ray acoustics refers to sound waves. Propagation is regarded as the propagation of a bunch of innumerable rays perpendicular to the isophase plane, each ray being in phase with the isophase plane. Vertical, called sound line. The distance through which the sound line Travels represents the distance of the wave propagation, and the time that the sound line experiences is the wave propagation. The time. The energy carried by the sound beam is the sound energy of wave propagation. Like geometric optics, ray acoustics The descriptive method gives people an intuitive feeling. Under certain conditions, the mathematical operation of ray acoustics is relatively simple. The sonogram given by ray theory can give an intuitive and visual understanding of the sound field.Accurate measurement of sound wave propagation in the ocean)

这是一个学生vb考试系统的源代码，功能还不是很完善，如有欠缺请指正。谢谢！-students vb test system source code, function is not perfect, if not please correct. Thank you!

说明：  matlab实现第一类边值问题求解，例题，二阶精度，空间中心，时间向前。(Solving the first kind of boundary value problem by MATLAB)

浙江大学ppt课件。讲解几何数据压缩的一些相关技术。对于学习着很有用处。(Zhejiang University Courseware ppt. Data compression on the geometry of some related technologies. For a very useful study.)