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QPSK调制解调的系统仿真实验，介绍了如何用matlab对其仿真(QPSK modulation and demodulation of system simulation experiments, describes how to use their simulation matlab)

说明：  局部碰磨事故检测代码，通过功率谱检测，例子检测了四种类型的碰磨事故(Partial rubbing incident detection code, through the power spectrum detection, examples of detection of the four types of rub-impact accident)

设信号 ，用 对x(t)采样得x(n)，是否会发生频谱混叠？现利用FFT分析其频谱。 1．编程绘制该信号的波形。 2．若令N=16，编程对x(n)做FFT运算，并绘制其幅频特性曲线。 3．令N=1024，编程对x(n)做FFT运算，并绘制其幅频特性曲线。 4．分析2、3的运算结果。 设计调试报告要求： 1．工作原理简述； 2．设计思路； 3．难点及解决方法； 4．设计、调试结果及分析； 5．程序文本及操作步骤。(based signal used to x (t) in the sample x (n), whether there will be a spectrum aliasing? FFT analysis is the use of their spectrum. 1. Programming mapping of the signal waveform. 2. If so N = 16, the programming of x (n) do FFT, and the mapping of its amplitude-frequency characteristic curve. 3. Order N = 1024, the programming of x (n) do FFT, and the mapping of its amplitude-frequency characteristic curve. 4. Analysis of two, three computational results. Design debugging reporting requirements : 1. Principle outlined; 2. Design; 3. Difficulties and solutions; 4. Design, debugging and analysis of results; 5. Text and operating procedures steps.)

雷达回波信号检测，LFM信号，脉冲压缩，MTD，相干积累，长线积累，距离走动，速度模糊(Radar echo signal detection, LFM signals, pulse compression, MTD, coherent accumulation of long term accumulation, walking distance and speed)

在matalab开发环境下的实现时域信号多尺度的分析，可用于信号的特征抽取和故障诊断(Multi-scale analysis of time-domain signal achieved in matalab development environment can be used for feature extraction and fault diagnosis signal)

Using interpolation method and implied volatility to calculate barrier options

programas cesar y polybios

play Canon with piano.

This program can be used for plotting wavelet function.

用于判断不含分支的电网的静态电压稳定性!里面包含第一类稳定判据和第二类稳定判据，用于充分判断电压稳定性!(Used to judge the excluding branch static voltage stability of power grid.Contains the first kind of stability criterion and the second category of stability criterion, is used to fully determine the voltage stability.)