svpwm3

qpsk2仿真代码 正交相移键控，是一种数字调制方式。(simulation code qpsk2 quadrature phase-shift keying is a digital modulation methods.)

输入信号五个基于瞬时信息的特征：零中心归一化瞬时幅度功率谱密度的最大值,零中心归一化瞬时幅度绝对值的标准偏差，零中心非弱信号段瞬时相位非线性分量绝对值标准偏差，零中心非弱信号段瞬时相位非线性分量标准偏差，零中心归一化的非弱信号段瞬时频率绝对值的标准偏差，得到识别出的信号类别，本例为2PSK, 4PSK, GMSK, OQPSK, pi/4DQSK中的一个，还可以看Art网络的扩展性。(input signal instantaneous information on five characteristics : In the center is one of the instantaneous rate of the power spectral density of the maximum, is a center to the absolute value of the instantaneous rate of the standard deviation, Non-zero weak signal instantaneous phase of the nonlinear component absolute standard deviation, Non-zero weak signal instantaneous phase of the nonlinear component standard deviation, In the center is one of the non-weak signal of the absolute value of the instantaneous frequency standard deviation, the identification of signal type, The cases of two PSK, 4PSK, GMSK, OQPSK, pi/4DQSK of one, Art can be viewed network scalability.)

利用matlab 进行段数傅里叶变换，进行频谱分析，对于从事相关工作的人很有帮助。(The number of segments by using Fourier transform of MATLAB, frequency spectrum analysis, is helpful to be engaged in relevant work.)

用于绘制双曲地震同相轴，以便后续的处理工作，非常有用(draw hyperbolic events)

fft与ifft系列程序，用于图像的滤波算法，信息提取。使用matlab环境，易用性强。 (fft and ifft program, matlab environment, easy to use.)

通信系统基于matlab的单边带SSB调制(Communications system is based on the single sideband SSB modulation matlab)

this is a matlab file that can convert the Lab color space to XYZ color space.

移动式超声波风速风向测量系统.pdf (Portable Ultrasonic Wind Measurement System .pdf)

1.实验目的：绘制分形图案并分析其特点。  2.实验内容：绘制Koch曲线、Sierpinski三角形和树木花草图形，观察这些图形的局部和原来分形图形的关系。  3.实验思路：利用函数反复调用自己来模拟分形构造时的迭代过程，当迭代指标n为0时运行作图操作，否则继续迭代(1. Purpose: Draw fractal patterns and analyze their characteristics. 2. Experiment: Draw Koch curve, Sierpinski triangle graphic flowers and trees, observe the relationship between the local and original graphics fractal graphics. 3. Experiment idea: using the function calls itself repeatedly to simulate the iterative process when the fractal structure, when the iteration index n is plotted 0:00 run, otherwise continue iterating)

使用人工神经网络识别手写字符，有样本有结果，代码可运行(handwriting character recognize with NN)