INS alignment

Program data interpolation by cubic splines

该文件是一个详细分析PID控制的文件。通过示波器，改变参数下，可以很形象的观察输出波形的变化，这样可以更加直观的学习PID控制，加深对它的理解。(The file is a detailed analysis of PID control file. Through the oscilloscope, change the parameters, can be very image of the observed output waveform change, so that we can more intuitive learning PID control, deepen the understanding of it )

直接序列扩频，在matlab上的程序，及其仿真图，希望可以为matlab入门的人有所启发。(Direct Sequence Spread Spectrum on matlab program, and simulation map, hoping to inspire people to matlab entry.)

自控原理的跟随示意原理，这个是M文件，可以直接用S函数实现，还可以看波形(Follow a schematic principle of automatic control theory, this is the M-file S function directly, you can also see the waveform)

matlab code for finite element method

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)

数学建模\清华数模讲义model5b ( Mathematical Modeling Qinghua digital-analog handouts model5b)

此程序为经典MUSIC算法，仿真含有两个干扰源情况下效果(This procedure for classical MUSIC algorithm, simulation case containing two sources of interference effects)

说明：  These are the source codes for training the neural networks with various kinds of training functions and for various kinds of inputs and alongwith there is important code also explaining difference between various kind of images like color gray b/w yuv ycbcr etc..

瑞利衰落信道和莱斯衰落信道matlab仿真代码(Rayleigh fading channels and Rice fading channel matlab simulation code)