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说明：  QPSK调制的matlab仿真函数。 虽然短小，但是实用。(QPSK modulation matlab simulation function. Although short, but practical.)

说明：  这个Matlab程序实现了MAP算法-最大后验概率算法，同时包括对算法有：卷积编码、卷积解码，BPSK，AWGN。同时绘制它的误码率和SNR(信噪比)。(The Matlab program achieved a MAP algorithm- maximum a posteriori probability algorithm, at the same time including the algorithm are: convolutional coding, convolution decoding, BPSK, AWGN. At the same time rendering its error rate and SNR (signal to noise ratio).)

此程序为标准相关干涉仪测向的程序，包括了相位估计和对算法的评估。(This program is the standard correlation interferometer procedures, including the phase estimation and evaluation of the algorithm.)

随机介质的基本知识和模型建立的相关算法以及流程图(Correlation algorithm and flowchart showing the basic knowledge and random medium model established)

西电廖桂生老师的阵列信号处理讲义，适合阵列信号方向研究者入门时阅览。(Array signal processing lectures West, Liao Gui-sheng teacher, researcher for entry when reading array signal direction.)

介绍了matlab中的M文件用C语言来实现的方法(Matlab introduction of M documents in the C language to realize the method)

使用Matlab语言完成《数值计算方法》中的Romberg（龙贝格）积分公式，程序可以根据用户输入的积分上下限、误差容限及表达式实现Romberg积分。(Using Matlab language to complete " numerical methods" in the Romberg (Romberg) integral formula, the program based on user input limits of integration, error tolerance and expression implementations Romberg integration.)

DFA方法，检测非平稳时间序列的波动性，用的非常普遍的方法，一种快速计算方法(DFA method)

开关磁阻电机，电流斩波控制，编写m函数计算转矩脉动系数，电流滞环控制(Switched reluctance motor, current chopping control, write a function to calculate the torque ripple coefficient m, the current hysteresis control)

this is the code to determine frequency of spoken speech