good_wiener

spread spectrum and despread

主要给出准循环的LDPC码编码实现方法，译码方法选择，并给出了帧同步的解决方法(Give the main quasi-cyclic LDPC codes achieve coding method, decoding method of selection, and give the frame synchronization solution)

用MATLAB绘制的多种客流峰值曲线，有全峰型，无峰型等(MATLAB rendering of peak curve of the passenger flow, the peak type, no peak type, etc )

一维线性齐次波动方程，用matlab语言实现，利用边界值和边界条件进行求解(One-dimensional linear homogeneous wave equation, with the matlab language, use of boundary value and boundary conditions to solve)

Hashin-Shtrikman计算体积模量和剪切模量上下边界(Upper and lower bounds of the Hashin-Shtrikman bulk modulus and shear modulus)

清华大学数学实验之数值积分幻灯片与MAT源码(Tsinghua University, numerical integration of the math test slides with the MAT-source)

It is a package of document and code for genetic algorithem optimization.

主要是研究信号、系统与系统响应，用matlab实现，对连续信号的采样以及卷积定理的验证以及相关的幅频特性等(is to study signal system and the system response using Matlab realized, the continuous signal sampling and convolution theorem certification and the associated frequency characteristics)

说明：  用于特征降维，特征融合，相关分析等多元数据分析的fisher鉴别分析（FLDA）Matlab代码实现。(For feature reduction, feature fusion, correlation analysis, multivariate data analysis of the fisher discriminant analysis (FLDA) Matlab code implementation.)

宇航工具箱，包括地影计算、大气密度计算等(Aerospace Toolbox, including the shadow calculation, calculation of atmospheric density)