multipath_chann

a modified version of siso algorithm

implementation of most algorithms in Simon haykin s book titled "Neural Network a comprehensive foundation."

应用matlab进行粒子滤波在无线传感器中的目标追中的仿真(Application of the particle filter matlab wireless sensors in the simulation of target tracking)

用来模拟粒子运动的。此元胞自动机需要 一种不同类型的元胞的邻居。此元胞的邻居时刻变化，因此某一个方向运动趋势， 将继续在同一个方向。换言之，此规则保存势头，这是基础的动力仿真。这种邻 居通常被称为 margolis邻居并且这种邻居通常由重叠的 2x2 块的元胞构成。在下 面的表格中，偶数步长时左上方 4 元胞为邻居关系，奇数步长时右下的 4 元胞为 邻居关系。某一特定元胞在每一个时间步长都有3 个邻居，但是具体的元胞构成 了邻居的旋转和反复。(Used to simulate the particle movement. The cellular automaton requires a different type of cell neighbors. This moment of change in a neighbor cell, so a certain direction the trend will continue in the same direction. In other words, this rule saved momentum, which is the foundation of the power simulation. This neighborhood is often called a neighbor and this neighbor margolis usually overlapping 2x2 blocks of cellular composition. In the following table, even when the step left four yuan for the neighbor cell, the odd step 4 when the lower right cell for the neighborhood. A particular cell in each time step has three neighbors, but the specific cellular composition of the neighbor s rotation and repeated.)

deterministic tourist walks

字符识别，较为入门的字符识别程序，基于MATLAB。适合入门(Character recognition, character recognition program is started, based on the MATLAB. Suitable for entry)

说明：  基于matlab中的simulink，进行16QAM的仿真搭建。包括了基带信号发生器，串/并模块，模块1，载波调制模块，高斯白噪声信道，模块2，误码率计算器等，能够较好地实现16QAM的调制解调。(Based on the Simulink of MATLAB, the simulation of 16QAM is built. It includes baseband signal generator, serial / parallel module, module 1, carrier modulation module, Gaussian white noise channel, module 2, bit error rate calculator and so on. It can achieve 16QAM modulation and demodulation well.)

说明：  对一个16元等距线阵，间距为半个波长，空间5个相互独立信源从不 同方向入射，信噪比分别为30、25、20、15、5dB。采用MUSIC方法估 计其空间入射方向(For a 16 element equidistant linear array, the spacing is half a wavelength, and five independent sources are incident from different directions. The SNR is 30, 25, 20, 15 and 5dB respectively. Music method is used to estimate the spatial incident direction)

说明：  一、用GA直接训练BP网络的权重算法 主程序：gafault.m 它包括以下子程序： 1.　BP网络初始化：nninit.m――给出P，T，R，S1，S2； 2.　适应值计算函数：gabpEval.m； 3．将遗传算法的编码解码为BP网络所对应的权值、阈值函数：gadecod.m； 二、用GA先求BP网络的权重，再用纯BP直接训练BP的混合GA－BP算法 主程序：gabpfault.m 它包括以下子程序： 1.　网络初始化：nninit.m――给出P，T，R，S1，S2； 2.　适应值计算函数：gabpEval.m； 3．将遗传算法的编码解码为BP网络所对应的权值、阈值函数：gadecod.m； 三、纯BP 　　主程序：（1）bpfault.m 在MATLAB5.2上 　　　　　　（2）bpfault.m 在MATLAB6.5上　为后来所加 (err)

ksvd算法的代码，可以通过训练字典，从而实现对数据的稀疏表示。(ksvd algorithm code, through training dictionary in order to achieve the sparse representation of the data.)