使用3种方法对EEG测量的脑源进行定位：吉布斯采样器（马尔可夫链蒙特卡罗算法）、最小范数估计（MNE）和基于结构稀疏性的源成像（SISSY）
Localization of brain sources measured by EEG using 3 approaches: Gibbs sampler (Markov chain Monte Carlo algorithm), Minimum Norm Estimates (MNE) and Source Imaging based on Structured Sparsity (SISSY) (2024-02-02, matlab, 0KB, 下载2次)
要说随机森林，必须先讲决策树。决策树是一种基本的分类器，一般是将特征分为两类（决策树也可以用来回归，不过本文中暂且不表）。构建好的决策树呈树形结构，可以认为是if-then规则的集合，主要优点是模型具有可读性，分类速度快。
In machine learning, a random forest is a classifier that contains multiple decision trees, and its output category is determined by the mode of the output categories of individual trees. (2019-05-07, matlab, 8KB, 下载6次)
图像配准的过程中两种或两种以上的图像重叠了在不同的同一个场景倍,从不同的观点和/或不同传感器。这两images-the区域的几何参考和感觉到图像。目前图像之间的差异,介绍了因不同成像条件。图像配准的一个决定性的步骤所有图像分析任务在最后的信息结合了各种各样的数据能源,如在图像融合、变化检测和多通道形象得到恢复。通常,必须注册在多光谱遥感分类、环境监测,变化检测图像拼接、天气预报、创造超分辨率图像、整合信息到地理信息系统(GIS)),结合医学计算机断层扫描(CT)、核磁共振数据获得更完善的信息,如病人、监测肿瘤生长,治疗病人的验证,比较数据的解剖地图集),在制图(map更新),在电脑视觉(目标定位,自动质量管理)等,不一一列举。
Image registration is the process of overlaying two or more images of the same scene taken at different times, from different viewpoints, and/or by different sensors. (2019-03-07, matlab, 11KB, 下载27次)
实现了心电曲线的实时绘制，正常QT间期范围设置、QT间期、QR间期的实时显示、可以显示一分钟之内的平均QT间期、QT间期状态一栏可实现间期预警，如果QT间期大于正常QT间期范围则状态颜色由绿色变成红色。用了一个100ms的定时器，每次100ms之后触发一次画图，让曲线往右移一格，由于100ms很短，所以在视觉上形成了连续移动的效果
The real-time rendering of the ECG curve is realized. The normal QT interval setting, the QT interval, the real-time display of the QR interval, the average QT interval in one minute and the QT interval state can realize the interval warning. If the QT interval is larger than the normal QT interval, the state color is turned from green to red. A 100ms timer is used, and a drawing is triggered every time after 100ms to move the curve to the right. Because the 100ms is very short, the effect of continuous movement is formed in the vision. (2018-05-20, matlab, 7KB, 下载1次)
许多图像问题需要某种物体的检测，其中图像之间的物体的外观有自然的变化。 如人脸识别，病变检测，神经通道分割。
这些图像问题可以通过手动注释图像对象来解决，以训练识别正常物体外观的模型。 这可以通过基于PCA的最大似然分类器来完成。
PCA algorithm suitable for detection / recognition of 2D image "objects" (2018-01-22, matlab, 1300KB, 下载9次)
用LU和LDU分解求解方程组，给出了详细说明
The equations are solved by the decomposition of LU and LDU, and the detailed description is given. (2017-12-07, matlab, 3KB, 下载20次)
求解器方程
BisectionZero.m 使用二分法求解方程的过零点；
LEPDS.m 求解方程ax = b，a为正定对称矩阵；
ModNewt 给定微分，求解方程f(x) = 0；
NLEqSolver.m 使用牛顿法求解方程；
NLEqSolverWrapper.m 使用不同的初值调用牛顿法解方程；
NewtRaph.m 方程只有一个根时，给定df(x)/dx信息，求解方程f(x) = 0。乳菇婆有多个根，x应该在根附近。
Math/Solvers
B
BisectionZero - Use bisection method to find the zero crossing of a function.
L
LEPDS - Solves the problem ax = b when a is positive definite symmetric
M
ModNewt - Finds the solution to f(x) = 0 given derivative information.
N
NLEqSolver - Solves a set of equations for zero using Newton s method.
NLEqSolverWrapper- Wraps the Newton s method solver by trying several values.
NewtRaph - Finds the solution to f(x) = 0 given df(x)/dx when only one root is possible
(2015-12-27, matlab, 6KB, 下载2次)
actorial (双)阶乘快速计算器 V8.0.0.0
一个可以快速计算（双）阶乘的绿色免费软件，是作者抽取了自开发的“HugeCalc”核心算法开发的，可以独立运行。
在双核上测试，精确计算 40,000,000!，HugeCalc 比最新的 Mathematica V6.01 快了 61 ！
The green free software can quickly calculate (double) factorial, of extracting a core of self-development "HugeCalc" algorithm development, can be run independently.
In the dual-core test, accurate calculation 40,000,000!, HugeCalc 61 faster than the latest Mathematica V6.01! (2012-11-28, matlab, 107KB, 下载3次)
用matlab软件编写感知器算法，实现对样本的分类，样本点为X1(0，0)，X2(0，-1)，X3(-1，0)，X4(-1，-1)
X1,X2属于第一类，X3、X4属于第二类；（编程）
X1、X4属于第一类，X2，X3属于第二类；（计算）
Perceptron Algorithm matlab software, to achieve the classification of samples, sample points X1 (0,0), X2 (0,-1), X3 (-1,0), X4 (-1,-1) X1 belonging to the first category, X2, X3, X4 belongs to the second category (programming) X1 and X4 belongs to the first class, X2, X3 belonging to the second category (computing) (2012-11-22, matlab, 23KB, 下载3次)
实现对测量电压信号的卡尔曼滤波功能现代测试系统中，传感器输出的信号以电压信号为主。因此对电压的精确测量是测试系统精确测量系统状态的重要前提。然而由于过程扰动噪声和测量误差使测得的电压值偏离真实的电压值。采用卡尔曼滤波方法可以减小上述误差。
Achieve the Kalman filter functional test system to measure the voltage signal, the sensor output signal to a voltage signal. Therefore, accurate measurement of the voltage test system is an important prerequisite for accurate measurement of the system. However, due to the process of the measured voltage deviation from the real value of the voltage disturbance noise and measurement error. Using the Kalman filtering method can reduce the error. (2012-07-11, matlab, 34KB, 下载35次)
用间断有限元方法求解二维Euler方程。
算例是一个圆柱绕流问题。压缩文件里面还包含了一个用MATLAB写的网格生成程
序，只需要做很小的改动就可以生成稀疏程度不同的网格。
程序还有些问题如下：
1. 因为没有对边界处作处理，所以计算的残差不会收敛到一个给定的小数，如
0.001等。当最大残差为0.1左右时，按下键盘上的ESC键，程序计算结束，会输出
一个文件Result.dat，用tecplot软件打开这个文件，可以得到一些结果，如流线
等。因为结果不收敛，在圆柱的后面会有两个涡出现，如果计算时间更长，会有
涡脱落的现象出现。如果想计算收敛，则需要对边界作特殊处理。处理方法见
2006年的文献High-order accurate implementation of solid wall boundary
conditions in curved geometries 。或者使用高阶的单元，如6节点三角形单元
。
2. 现在还不能捕捉激波，因为没有加限制器。
如果您在这个程序的基础上解决了上面提到的问题，请联系我，也共享一下程序
哦 ^_^
Send a written discontinuous finite element program--- for solving two-dimensional Euler equations
The attachment is a C language program I wrote it myself. Discontinuous finite element method for solving two-dimensional Euler equations.
Example is the flow around a cylinder. Zip file which also contains the mesh generation process to write a MATLAB
Sequence, just do small changes can generate sparse different grid.
The program also some problems as follows:
Because there is no boundary, so the residuals of the calculation will not converge to a given decimal, such as
0.001 and so on. When the maximum residual is about 0.1, press the ESC key on the keyboard, the program calculates the end, will output
A file Result.dat, the use tecplot software to open this file, you can get some results, such as flow lines
And so on. Because the result does not converge, there will be two in the back of the cylinder vortices appear, if the calculation of longer, there will be
Th (2012-04-23, matlab, 38KB, 下载83次)
在非线性科学中，“混沌”这个词的含义和本意相似但又不完全一致，非线性科学中的混沌现象指的是一种确定的但不可预测的运动状态。它的外在表现和纯粹的随机运动很相似，即都不可预测。但和随机运动不同的是，混沌运动在动力学上是确定的，它的不可预测性是来源于运动的不稳定性。或者说混沌系统对无限小的初值变动和微绕也具于敏感性，无论多小的扰动在长时间以后，也会使系统彻底偏离原来的演化方向。混沌现象是自然界中的普遍现象，天气变化就是一个典型的混沌运动。混沌现象的一个著名表述就是蝴蝶效应：南美洲一只蝴蝶扇一扇翅膀，就会在佛罗里达引起一场飓风。 混沌系统具有三个关键要素：一是对初始条件的敏感依赖性；二是临界水平，这里是非线性事件的发生点；三是分形维，它表明有序和无序的统一。混沌系统经常是自反馈系统，出来的东西会回去经过变换再出来，循环往复，没完没了，任何初始值的微小差别都会按指数放大，因此导致系统内在地不可长期预测。 混沌确定系统是庞加莱在研究三体问题时第一次发现的。
In nonlinear science, the "chaotic" and intended meaning of the word similar to but not exactly the same chaos in nonlinear science refers to a determined but not predictable state of motion. Its external performance and pure random motion is very similar to that are unpredictable. But the movement is different and random, chaotic motion is determined by the dynamics, and its unpredictability is derived from the movement of instability. Or chaotic systems an infinitesimal initial changes and also with the sensitivity of micro-wound, no matter how small perturbations in a long time after, but also make the system complete the evolution from the original direction. Chaos is a common phenomenon in nature, the weather is a typical chaotic motion. Chaos is one of the famous butterfly effect expression: a South American butterfly wings fan, it will cause a hurricane in Florida. Chaotic system has three key elements: First, the sensitive dependence on initial conditions second, critical leve (2010-11-28, matlab, 7KB, 下载71次)
典型混沌系统的非线性鲁棒控制同步论文及其MATLAB程序实现
某典型混沌系统同步控制，所采用的方法是非线性控制，将非线性系统在控制器的作用下转化为标准的线性系统。从而消
除非线性混沌现象。附件包含了所参考的论文和MATLAB仿真程序。是利用非线性控制实现混沌系统同步很好的参考文献。
引用请注明原文章出处，如果你参考了本平台的程序也请注明出处，谢谢合作！The author is zeng zheng, college of
electrical engineering, Zhejiang University. For more information, connect with me, E-mail:
zengerzheng@126.com.
[] 曾正.混沌系统的非线性控制同步[EB/OL].http://sites.google.com/site/zhejiangucee/Home/dian-li-xi-tong-fei
-xian-xing/hun-dun-xi-tong-de-fei-xian-xing-kong-zhi,2009-7-15.
good (2010-03-28, matlab, 49KB, 下载182次)
利用反控制法构造了1 个新的混沌系统,分析新系统的平衡点及在平衡点的特征值,分形维数,L yapunov 指数
等性质,设计1 个由2 个混沌系统组成的可切换的实际电路并进行实验,通过1 个开关选择器,电路可以实现2 个子系统
的功能,观察到2 个子系统在各个相平面的混沌吸引子。
Use of anti-control method to construct a new chaotic system to analyze the new system equilibrium point and the equilibrium point of the characteristic value of the fractal dimension, L yapunov index nature of the design of a chaotic system by the two that can be composed of The actual circuit switching and conduct experiments, through a selector switch, the circuit can be achieved two sub-functions of the system, observed that two sub-systems in each phase plane of the chaotic attractor. (2009-10-15, matlab, 629KB, 下载56次)
弹簧隔振器的系数k0=4.5
hc=3.5
d=[3.15 3.23]
a1=tan(pi*(d)./(2*hc))
a2=cot(pi*(d)./(2*hc))
％ plot(d,a1)
y=(a1+a2)*2*k0*hc*1e-3./pi
y=y./9.8*8
％
var=1+(tan(pi*(d+0.25)./(2*hc))).^2
k=2*k0*hc/pi*( var*pi./(2*hc)+var*pi./(2*hc)./(var-1
Spring isolator coefficient k0 = 4.5 hc = 3.5 d = [3.15 3.23] a1 = tan (pi* (d)./(2* hc)) a2 = cot (pi* (d)./(2* hc )) plot (d, a1) y = (a1+ a2)* 2* k0* hc* 1e-3./piy = y./9.8* 8 var = 1+ (tan (pi* (d+ 0.25 )./(2* hc ))).^ 2 k = 2* k0* hc/pi* (var* pi./(2* hc)+ var* pi./(2* hc)./(var-1 (2008-04-07, matlab, 1KB, 下载9次)
电力系统在台稳定计算式电力系统不正常运行方式的一种计算。它的任务是已知电力系统某一正常运行状态和受到某种扰动，计算电力系统所有发电机能否同步运行
1运行说明：
请输入初始功率S0，形如a+bi
请输入无限大系统母线电压V0
请输入系统等值电抗矩阵B
矩阵B有以下元素组成的行矩阵
1正常运行时的系统直轴等值电抗Xd
2故障运行时的系统直轴等值电抗X d
3故障切除后的系统直轴等值电抗
请输入惯性时间常数Tj
请输入时段数N
请输入哪个时段发生故障Ni
请输入每时段间隔的时间dt
power system stability in the Taiwan Power computing system is not the normal operating mode of calculation. Its mission is a known power system uptime status and be subject to some disturbance, computing power system all synchronous generator can run an operation Note : Please enter the initial power S0, shaped like a bi Please enter the infinite system bus voltage V0 Please enter the system equivalent reactance matrix B matrix B group has the following elements the line matrix into a normal operation of the system straight axis equivalent reactance Xd two fault systems running straight axis equivalent reactance X d 3 after resection of the fault system straight axis equivalent reactance Please enter the inertial time constant Tj Please enter the number of hours which N Please enter a tim (2006-06-08, matlab, 1KB, 下载60次)
一组仪器性能分析程序，分别计算仪器的线性度、迟滞、符合度、重复性。其中M_repeatability与M_bessel一起使用计算重复性。具体算法参考《传感器技术及应用》樊尚春著。
equipment performance analysis procedures, the machines were calculated linearity, hysteresis, compliance and reproducibility. M_repeatability M_bessel which together with the use of repetitive calculations. Specific reference algorithm "Sensor Technology and Application" with Vincent spring. (2006-04-29, matlab, 3KB, 下载42次)