jisuanqi

修改后的phase函数，把它的门限值换为pi，使用更方便(The modified phase function, the threshold for it to pi, the use of more convenient)

说明：  基于matlab的QPSK调制及其误码率曲线(QPSK modulation and the bit error rate curve)

说明：  将图像从RGB颜色空间转换成lab颜色空间(Transfer image s color space from RGB to lab)

说明：  对图像进行均值化，并用均值化后的图进行数字全息的模拟，同时运用两种不同方法进行全息图的再现(The mean of the image and use the mean of digital holographic map after the simulation, while using two different methods of reproduction of the hologram)

基于BP神经网络的人脸识别系统的研究 采用的是PCA和BP网络(Based on BP neural network face recognition system using PCA and BP Neural Network)

王丰华等提出的相位差分法的实现，主要用于信号处理中提取信号的瞬时频率。注意该方法只适用于单分量信号。另外一个是利用自相关法求瞬时频率(Wang Fenghua such as the phase difference method to achieve, mainly used for signal processing to extract the instantaneous frequency of the signal. Note that this method is only applicable to single-component signal)

高铁信道模型Qianliu模型仿真,自相关函数与clarke模型自相关函数的比较(Qianliu channel model for high-speed railway compared with Clarke s correlated function)

电力电子、电机控制系统仿真模型 经典仿真源程序 洪乃刚版本(Power electronics, motor control system simulation model version of the classic simulation source Hong Naigang)

一LSB的数字水印代码，很好用，代码里面有注释说明(a digital watermark code is useful, code inside annotated)

图论中的floyd算法。简单的小程序，可以插入任何过程中，方便实用。(In graph theory algorithms. Simple procedure, you can insert any process, convenient and practical.)