AFirstCourseInFiniteElements-Ch12-MATLAB

四节点单元刚度矩阵，使用matlab编制，上传的是m文件。(QuadraticQuadElementStiffness，by matlab )

说明：  这是一个关于盲源分离独立成分分析方法，效果很好(Here is a blind source separation independent component analysis)

说明：  先把图形改为.bmp形式，用matlab编程的(First graphics changed. Bmp format, using matlab programming)

simulation of the effects of phase distortion in a signal, changing the amount of lag

lagrange interpolation matlab code

标准PSO算法源代码（matlab） 不少网友需要PSO源代码，现将很早前的matlab代码贴上来。不过俺已经不搞学术很久了，现从事财政公务员工作，因此可能无法解答更多问题。(Standard PSO algorithm source code (matlab) that many users need to PSO source code matlab code much earlier now Tieshanglai. But I have been a long time not to engage in academic, civil servants are engaged in financial work, and may not answer more questions.)

Consist of SPWM Generator. Three phase inverter with pulses.

在很多图像处理的过程中，需要判别一个图像的清晰度，和图像分割结果的优劣，于是就引出了信息熵的概念，绝大多数时候，它都被用来作为评价图像的一个量化标准。(In many image processing processes, it is necessary to distinguish the clarity of an image and the result of image segmentation, so the concept of information entropy is introduced. Most of the time, it is used as a quantitative standard to evaluate the image.)

说明：  此程序实现自适应波束图中的不同的阵列间距和期望信号方向对波束图的影响(Realize this procedure adaptive beamforming map different array spacing and the desired signal direction of the impact of beamforming map)

说明：  描绘一种绘制图形的方法，在该程序中使用的是极坐标绘图。会出的图形是花瓣形状。(Describe a method of drawing graphics in the program using polar mapping. Will the graphics is petal shape.)