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接地技术最早是应用在强电系统（电力系统、输变电设备、电气设备）中，为了设备和人身的安全，将接地线直接接在大地上。由于大地的电容非常大，一般情况下可以将大地的电位视为零电位。后来，接地技术延伸应用到弱电系统中。对于电力电子设备将接地线直接接在大地上或者接在一个作为参考电位的导体上，当电流通过该参考电位时，不应产生电压降。然而由于不合理的接地，反而会引入了电磁干扰，比如共地线干扰、地环路干扰等，从而导致电力电子设备工作不正常。可见，接地技术是电力电子设备电磁兼容技术的重要内容之一，有必要对接地技术进行详细探讨。(Grounding technology was first applied in strong electric system (power system, power transmission equipment, electrical equipment), in order to equipment and personal safety, the ground wire directly connected to the earth. Because the earth capacitance is very large, under normal circumstances can be considered to be zero potential earth potential. Later, grounding techniques applied to extend the weak system. For power electronic devices directly connected to the ground wire on the ground or connected to a reference potential as a conductor, when the current through the reference potential, and should not generate voltage drop. However, due to unreasonable ground, but will the introduction of electromagnetic interference, such as co-ground interference, ground loop interference, resulting in power electronic equipment is not working properly. Visible, grounding technology is an important part of power electronic equipment EMC technology, it is necessary for grounding techniques disc)

有限元计算程序。三角形线性元的有限元计算程序。练习使用。(Finite element program.Triangular linear finite element computer program. Practice using.)

automatic mesh generation for fem problem

有限元求解结构固有频率和振型、显示（中心差分法，Newmark法）、隐式法、非线性法程序(middle difference/Newmark/nonlinear)

K-mean for clustering based method

本程序为通信系统中的MSK调制程序，对于研究通信调制解调的人来说十分有用！(This procedure for the communications system MSK modulation process, the study of communication modem very useful for people!)

Drop Down Searching implementation on Powerbuilder.

MATLAB语言常用算法程序集,包含了大量的实例程序(MATLAB language programs, including a large number of example programs)

说明：  该程序是基于QR分解的V-BLAST检测算法,两种算法，包括QR分解算法和SQRD算法。(The program is based on QR decomposition V-BLAST detection algorithm, two algorithms, including QR decomposition algorithm and SQRD algorithm.)

使用matlab，手工标记好一个特征线，对视频序列提取特征进行跟踪匹配例子(Use matlab, hand-labeled good a characteristic line of video sequences extracted features to track matching examples)