PWM-AC-to-DC

fir filter design using mathlab

this is genaral techniques involves in noise cancellation and this matlab version

测量数据处理中闭合导线、支导线、附合导线的计算代码三个，另外两个是牛顿迭代法和GaussSeidel迭代法。(Measurement Data Processing Closed Traverse, Traverse, with a combined computing code three conductors, two other Newton iterative method and GaussSeidel iterative methods.)

这是有关matlab的编程，值得一看，呵呵呵呵呵呵呵呵(matlab)

说明：  对图像进行二值化处理，是图像预处理的重要步骤内含4种不同的方法(The binary image processing, is an important step in image pre-processing consists of 4 different ways)

数字水印图片信息隐藏在载体图片的最低有效位lsb，直接替换，该方法简单易操作，鲁棒性很差，经不起加噪，滤波，剪贴等攻击(digital watermarking Photo vector information hidden in the lowest effective photo-lsb direct replacement, The method is simple and easy to operate, robust poor and the inability to increase noise, filtering, clippings and other offensive)

matlab/GUI开发，实现文件浏览功能。(matlab/GUI development, implementation file browsing capabilities.)

灰度图象的直方图均衡化；梯度；直方图规定化；灰度图象的直方图数据；灰度直接变换:增强对比度(gray image histogram equalization; Gradient; Histogram provisions; Gray image histogram data; Gray direct transformation : Enhanced Contrast)

Classify the maturity and prematurity stage of cotton flower which helps in developing a expert system.

生成多点地震动，多点激励，地震动的空间变异性。(spatial variation of earthquake ground motion，non-uniform excitation。)