feature_selection_similarity

此程序是基于MATLAB开发，用于相机标定，能较高精度的计算相机的内网外房外元素(This program is developed based on MATLAB for camera calibration, can be calculated with high accuracy within the network, the camera outside the room element)

对声音中嵌入的图像进行提取，此图像时矩阵排列(Embedded in the sound image was extracted from a matrix of this image)

海伦方法分析偶极子天线的频率阻抗特性-电阻随频率的变化，电抗随频率的变化(Helen analyze the frequency dipole antenna impedance- resistance changes with frequency, the change of reactance with frequency)

Data Communications and Networking Solutions(ch11-20)(Data Communications and Networking Solutions (ch11-20))

Spectrum Digital tests example dm365

ＧＰＳ捕获跟踪新算法，DBZP实现高灵敏捕获(high sensitive acq)

把HHT和神经网络结合起来，识别出是否故障。对于HHT变换，这里用到的是它的IMF分解，然后用能量理论来判别哪些模组是虚假分量，哪些是是真实分量。对于EMD分解后的谱进行特征提取 ，利用的理论基础就是模糊熵。计算出真实 分量的模糊熵，作为输入层；输出层为两个神经元，为0（故障 ）1（正常 （正常 ）判别该信号是否出现故障。(The combination of HHT and neural network to identify whether the fault. For the HHT transform, here is the use of its IMF decomposition, and then use the energy theory to determine which module is false, which is true component. The theoretical basis for the feature extraction of the spectrum after EMD decomposition is fuzzy entropy. The fuzzy entropy of the real component is calculated, as the input layer, the output layer is two neurons, which is 0 (fault) 1 (normal) to determine whether the signal is faulty.)

内含三维空间中的分形插值算法源代码。双击Debug下的Fractal Example.exe文件，程序运行；双击Fractal Example.dsw文件，进入编辑环境。(3D space containing the fractal interpolation algorithm source code. Double-click the Debug Fractal Example.exe documents, operating procedures; Double-click Fractal Example.dsw documents to enter editing environment.)

fir filter design for digital signal proccessing

the code file that is uploded is harmfreq file