face-recognition-based-on-pca-method

说明：  跳频是按跳频序列随机改变一个信道所占有频道频率的技术。在GSM 系统中，可利用跳频技术频率分极和干扰分极的特点，改善网络质量。引入跳频技术，可保证在网络软拥塞不上升的情况下，频率复用度较小。(FH frequency hopping sequence is based on a random channel change in the country channel frequency technology. In the GSM system, can make use of frequency hopping technology sub-polar and polar characteristics of interference and improve network quality. The introduction of frequency-hopping technology to ensure that congestion in the network does not increase in the soft case, a smaller frequency reuse moment.)

包括最小二乘法、SVM、神经网络、1_k近邻法,用于时频分析算法，阵列信号处理的高分辨率估计。( Including the least squares method, the SVM, neural networks, 1 _k neighbor method, For time-frequency analysis algorithm, High-resolution array signal processing estimates.)

双层优化模型，求解思路是：首先对上层的决策变量编码，代人下层规划模型，通过求解下层模型的决策变量值，代入上层模型计算适应度值，然后进行交叉、变异、选择操作，最后求出最优解(two-layer optimization)

用Matlab实现16QAM的调制和解调，在matlab7环境下运行(Matlab realize with 16QAM modulation and demodulation, in the circumstances to run matlab7)

一个关于混沌序列的噪声压缩程序，主要基于主分量分析方法，消噪效果非常好。模拟信号上加了100 ％噪声(a chaotic sequence of the noise compression procedures, mainly based on principal component analysis, denoising very good results. Analog signals on the 100% increase in noise)

Local directional pattern has implemented to extract texture multi orientation

由于自校正控制器在实际中的广泛运用，其缺点日益明显，主要体现在变阶次、变时延和变参数的系统中，因此研制具有较强的鲁棒性的控制器在实际运用中非常有用。Clark等人提出的广义预测控制自校正控制器是一种基于参数模型的预测控制算法，它采用了时段优化性能指标，结合辨识和自校正机制，从而克服自校正控制中存在的缺点，具有较强的鲁棒性。(self-tuning controller in practice the widespread use of its increasingly obvious shortcomings, mainly reflected in the change of Order, Variable Delay and change parameters in the system, developed with the robustness of the controller in actual application is very useful. Clark and others put the GPC self-tuning controller is based on the parameters of a model predictive control algorithm, it uses time optimize performance indicators, combining literacy and self-correction mechanism, in order to overcome self-tuning control of the shortcomings, with strong robust.)

说明：  仿射变换和猫脸变换是图像加密算法中最基本的算法之一，很多重要的加密算法都是在此基础发展而成的，该程序供研究加密算法的初学者参考使用。(Affine transformation and cats face is the most basic image encryption algorithm in one of many important cryptographic algorithms are evolved on this basis, the program for research reference for beginners to use encryption algorithms.)

只要认真看， 一天就可以掌握DFT的原理，大家看看哦(As long as a day, you can master the principle of the DFT, we look at)

关于今年来四川房价的一个时间序列预测，有很好的预测结果(For this year to a time series of Sichuan house price forecasts)