A-linear-regression

Taking gradient of an image

QR分解的编码，可以直观的看到编码的过程(base on OR)

this is source code of gabor feature extraction for face recognition.

一个基于8发1收的多天线系统的准正交差分调制例程(made a resumption of multi-antenna systems in the orthogonal Differential Modulation routines)

电力系统潮流计算程序(极坐标、带IEEE算例)，内含14，,3,118节点的数据。(Power flow calculation program (polar coordinates with IEEE numerical example), containing 14 data 3,118 nodes.)

本程序为弹道仿真程序，为6自由度仿真程序，供参考(guidance law)

蒙特卡洛使用程序基本源代码，提供随机变量的多种分布类型，可以直接使用。(Monte Carlo procedures for the basic source code, to provide a wide range of random variable distribution type, can be used directly.)

1. 608组样本，第一列数字是标号，第二列数字是出现损坏的时间，第三列表示数据有效性，为0有效 2. 损坏时间是对数正态分布的，需要拟合 3. 求均值80%置信区间 4. 成本为m，价格为s，保证盈利20%，选取保修期 5. 比较保修期和拟合数据的均值 6. 若保修期就是拟合损坏时间的均值，求出利润率 loadd.m：加载样本数据，并选取有效数据 period.m：加载成本、价格数据，计算利润和保修期的关系(1.608 groups of samples, the first number is the label, the second column number is the time to appear damage, the third list shows the validity of the data, which is 0 effective. 2. damage times are logarithmic normal distribution and need to be fitted 3. mean in 80% confidence interval 4. the cost is m, the price is s, the profit is 20%, the warranty period is selected. 5. compare the mean value of the warranty period and the fitting data 6. if the warranty period is to fit the mean damage time, the profit rate is calculated. Loadd.m: load the sample data and select the valid data Period.m: loading cost, price data, and calculating the relationship between profit and warranty period)

RA 码及其在通信系统中的应用研究确良：重复累积码；简化译码算法；高斯估计；比特交织编码调制；光纤通 信；码率兼容码；Turbo 码交织器(RA Code and Its Application in Communication System does good: repeat accumulate codes simplify the decoding algorithm Gaussian estimation Bit-Interleaved Coded Modulation optical fiber communication rate compatible code Turbo Code Interleaver)

国家知识产权局最新发布的专利审查指南，对比老的有许多改进和不同，应该了解啊(State Intellectual Property Office recently released patent examination guidelines, compared to the old there are many improvements and different, should know ah)