PID_DIFF

应用于电力系统潮流计算，使用时只需对结点数目和导纳参数做适当修改(Used in power flow calculation, when used only on the number of nodes and make the appropriate changes admittance parameters)

matlab代码调用摄像头，从而实现手势识别功能，代码没有问题(Realization of gesture recognition)

图像水平变换：分别实现对图像的水平外凹和水平外凸。(Image level of transformation: the implementation level of the image and level .)

kalman滤波实验，目标轨迹跟踪，很好用的例子，供大家学习用(kalman filtering experiments, the target trajectory tracking, with a good example for all to learn)

对于一个给定的离散随机序列，用间接法进行三阶累积量谱的估计，并分别用四种不同窗函数，包括Hamming窗、Sasaki窗、Parzen窗、daniell窗等。(For a given discrete random sequence, using the indirect method for third-order cumulant spectrum estimation, and were four different window functions, including the Hamming window, Sasaki window, Parzen window, daniell windows.)

Refprop library. This library calculates thermodynamics properties for several refrigerants

灰色预测GM（1，1）模型的matlab源代码，包括预测模型的建立，以及模型的精度检验指标c,p的计算-Gray prediction GM (1,1) model matlab source code, including the prediction model, as well as indicators of model accuracy test c, p calculation(Gray prediction GM (1,1) model matlab source code, including the establishment of forecasting model, as well as test the accuracy of the model indicators c, p calculation-Gray prediction GM (1,1) model matlab source code, including the prediction model, as well as indicators of model accuracy test c, p calculation)

素性检测使用米娜罗宾检测方法对数进行素性检测(Primality testing detection methods using Minaluobin logarithmic to primality testing)

SIFT特征和正交DLT算法在物体识别中的应用.(SIFT features and orthogonal DLT algorithm in object recognition.)

OFDm模型里面的调制和解调相关源程序代码(OFDm model inside the modulation and demodulation relevant source code)