Communication-System-Simulation-7-8

基于偏微分方程的多级分层的图像增强算法，(Multi-level hierarchical image enhancement algorithm based PDE algorithm)

图像拼接的matlab代码，可以作为参考(Image mosaic matlab code, can be used as reference)

buildroot openwrt for development with samba4

递推最小二乘算法，只适合单入单出，用于建模中的参数辨识，(Recursive least squares algorithm, Single Input Single Output, parameter identification)

This project uses PCA (Principal Component Analysis) to detect face from 2D images.

用matlab实现无线传感器网络中的leach分簇路由协议(the implementation of leach routing protocol in wsn by matlab)

运用一种新的AHP评价方法对分层指标进行评级，新颖之处在于利用了三角模糊数的概念改进评价。(Employing a new evaluation method AHP hierarchical index ratings, novelty is the use of the concept of triangular fuzzy numbers improved evaluation.)

QPSK在加性高斯白噪声环境下，信噪比和误码率的仿真。 先产生一个四组符号的序列，再将该序列映射到对应的相位上。用相应的函数产生均值为零、方差为δ2的加性高斯噪声。 (QPSK the additive white Gaussian noise environment, and the signal-to-noise ratio of the simulation. First group have a four symbols of sequence, then this sequence mapped to the corresponding phase on. With the corresponding function have zero mean and variance of 未2 additive white Gaussian noise.)

介绍了常见的时频分析方法，包括短时傅里叶变换，Wigner-Ville分布以及小波变换等，结合MATLAB，引导读者如何运用其来进行时频分析(Describes the common time-frequency analysis methods, including short time Fourier transform, Wigner-Ville distribution and wavelet transform, combined with MATLAB, to guide the reader how to use it to carry out time-frequency analysis)

压缩感知的很简单的入门小例子，基矩阵为正弦基，能很好地重构出稀疏信号(A simple example for the introduction of CS theory, the basis matrix is sinosoidal matrix, which can fully reconstruct the sparse signal.)