change_sign

基于差分背景计算车辆数量 素材是截图视频网站的一段隧道视频 通过背景差分 实现计算隧道内的车辆(Calculate the number of vehicles based on differential background material is a section of the tunnel screenshots video website video background subtraction calculation tunnel vehicles)

区域生长法，matlab代码，包含3个m文件和两幅图像(Region growing method, matlab code, containing 3 m files and the two images )

使用矩量法计算微带天线的特征阻抗，用户需自行更改其中的天线的几何尺寸和工作频点．(Calculated using the method of moments microstrip antenna characteristic impedance, the user need to change one of the antenna geometry and frequency.)

Nakagami_m衰落信道下OSTBC_OFDM系统的性能分析(Nakagami_m OSTBC_OFDM under fading channel the performance of the system analysis)

遗传算法，基因突变函数，交叉函数，二进制转十进制，十进制转二进制(Genetic algorithms, function mutation, crossover function, binary to decimal, decimal to binary)

PQ分解法潮流计算，针对陈珩著《电力系统稳态分析（第三版）》中的例题编写，超实用！！(The MATLA code for P-Q method power flow computation.)

包含特征值与特征向量的提取、训练样本以及最后的识别，信号维数的估计，小波包分析提取振动信号中的特征频率。( Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition, Signal dimension estimates, Wavelet packet analysis to extract vibration signal characteristic frequency.)

code for simulating extended kalman filter

说明：  牛顿哈普森算法，MATLAB源码，This is specially to solve nonlinear systems of equations using the newton raphson method(Newton Raphson Method For NonLinear systems of Equations)

说明：  MATLAB中实现GMM算法的原始代码，实现图像分割(GMM algorithm implemented in MATLAB source code for image segmentation)