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利用Matlab仿真软件，完成如图1所示的一个基本的数字通信系统。信号源产生0、1等概分布的随机信号，映射到16QAM的星座图上，同时一路信号已经被分成了实部和虚部，后边的处理建立在这两路信号的基础上。实部、虚部信号分别经过平方根升余弦滤波器，再加入高斯白噪声，然后通过匹配滤波器（平方根升余弦滤波器）。最后经过采样，判决，得到0、1信号，同原信号进行比较，给出16QAM数字系统的误码。(Using Matlab simulation software, as shown in Figure 1 to complete a basic digital communications systems. Signal source such as arise over the distribution of 0,1 random signal, is mapped to 16QAM constellation diagram, at the same time all the way the signal has been divided into real and imaginary parts, behind the deal with the establishment of these two signals in the basis. Real part, imaginary part of the signal, respectively, after a square root raised cosine filter, then add white Gaussian noise, and then through the matched filter (square root raised cosine filter). Finally, after sampling, the verdict has been 0,1 signal, to compare with the original signal is given 16QAM digital system error.)

很好的一个ofdm算法的源代码，很适合大部分的初学者。有利于大家好好的理解ofdm的功能。(Ofdm algorithm a good source code, it is suitable for most beginners. Be kind to help understand the functions of ofdm.)

基于MATLAB编程能计算任意个节点的介数(Can calculate the betweenness of any node Based on MATLAB programming)

说明：  在高斯信道下的最大最小中继选择算法的放大转发中继(Amplify and forward relay under max min relay selection algorithm)

Arnold置乱变换的matlab代码，函数形式，做数字水印经常用到。(Arnold scrambling transform matlab code, functional form, so often used in digital watermarking.)

粒子滤波（Particle Filtering）是基于贝叶斯估计的一种估计算法，在制导，导航，通信，金融中用着广泛应用。该程序实现了基于粒子滤波方法的动目标跟踪。(Particle Filter (Particle Filtering) is an estimate based on Bayesian estimation algorithm, using the widely used in guidance, navigation, communications, finance. The program implements a moving target based on particle filter tracking.)

Core M3直接操作寄存器控制GPIO的用法。(Core M3 directly manipulate registers control the GPIO usage.)

Wigner-Ville 分布(简称 WVD)是典型的二次型变换，它定义为信号瞬时相关函数的傅立 叶变换。 由于在计算中不加窗操作，它避免了时域分辨率和频域分辨率之间的相互牵制。 已证明，对于单分量线性调频信号，WVD 的时频表示能量集中性最优。但也正因为不涉 及窗函数，在分析多分量信号时 WVD 会受到交叉项的干扰。(The Wigner-Ville distribution (WVD) is a typical quadratic transformation, which is defined as the Fourier of the instantaneous correlation function of a signal. Ye Bianhuan. Because of no window operation in the calculation, it avoids the mutual restraint between time domain resolution and frequency domain resolution. It has been proved that for the single component LFM signal, the WVD time frequency representation has the best energy concentration. But it is also because it does not involve. And window functions, when WVD is used to analyze multi-component signals, it will be interfered by cross terms.)

matlab逆broyden迭代法计算方程(Matlab broyden inverse iteration calculation equation)

matlab下的核磁共振可视化，展示了自发弛豫过程(MRI visualization under matlab, showing the spontaneous relaxation process)