main

本程序源码用于电力系统对称三相短路电流计计算，由matlab语言实现。 可直接使用。 (This procedure source for symmetrical three-phase power system short-circuit curreent calculation, by the matlab language. Complete source code can be used directly. )

说明：  提出了正交频分复用(O FDM ) 系统中一种新的载波频偏估计算法L 载波频偏估计过程可分 为获取和跟踪, 其中, 获取过程和时间同步是同时完成的L新算法可实现的最大载波频偏获取范围 是整个信号带宽的一半L新的跟踪算法是一个最大似然算法, 在加性白噪声高斯信道(AW GN ) 下, 当N (训练序列长度的一半) 等于128 时, 其性能比Schm idl 算法提高约7127 dB 在多经信道下, 当 信噪比不是很高时, 新算法仍具有优势L(new carrier f requency offset est imat ion scheme in o rthogonal f requency division mu lt ip lex ing (O FDM ) system is p ropo sed. The carrier f requency offset est i2 mat ion includes acqu isit ion and t rack ing, and acqu isit ion as w ell as t im ing synch ro2 n izat ion can be perfo rmed simu ltaneou sly w ith h igh accu racy. The max imum acqu i2 sit ion range can be up to one half of overall signal bandw idth. The p ropo sed t rack2 ing est imato r is a max imum 2likelihood est imato r, and in AW GN channel, abou t 7127dB imp rovemen t is ob tained compared to the Schm idl’s algo rithm w hen N = 128 in mu lt ipath channel, the p ropo sed algo rithm wo rk s w ell at moderate SNR.)

选择“BreastCancer”数据集，使用支持向量机(SVM)对其进行分类。作为对比，第一次对特征集直接进行支持向量机分类，第二次对特征集进行主成分分析法的特征提取后，再对特征提取后的特征集进行支持向量机分类。并且对比和分析了两次分类的结果。(The BreastCancer data set is selected and classified by Support Vector Machine (SVM). For comparison, the first time the feature set is classified directly by support vector machine, the second time the feature set is extracted by principal component analysis, and then the feature set is classified by support vector machine. The results of the two classifications are compared and analyzed.)

一维插值、二维插值，三维插值也有，但是结果没有显示，各位帮我诊断一下(One-dimensional interpolation, two-dimensional interpolation, three-dimensional interpolation also has, but the results did not show, you help me diagnose what)

用Matlab编程求解切比雪夫型渐变线的阻抗、线宽和驻波比(Programming with Matlab for solving Chebyshev-type gradient line impedance, line width, and standing-wave ratio)

it is cluster1 matlab code

说明：  三体问题粒子轨迹图。设正电荷在（-1，0）（1，0）处，电子初始位置根据设定。(three body problem. Positive particle is placed on （-1，0）（1，0）. This program will give the trace of the electron under selected initial position.)

便携式直线一级倒立摆MATLAB6.5版本程序，适合于初学Simulink者,包含所有S函数源代码(Portable straight line the inverted pendulum the MATLAB6.5 version of the program is suitable for novice Simulink, contains all S-function source code)

matlab 学习技巧，现在把我用的，也就是对我帮助很大的留个文件传上去，希望对大家有用，第一应用与技巧(matlab learning skills, and now I use, which is a great help to me to leave a document passed up, we want to be useful, the first application and skill)

本程序用于对三维转台目标进行ISAR成像（发射LFM信号，stretch处理）(This program is used for three-dimensional turntable targets ISAR imaging (LFM signal transmitter, stretch processing))