eig_calculate

基于MATLAB的蚁群算法 可以应用于协作通信的伙伴选择中(MATLAB-based ant colony algorithm can be applied to partner selection in cooperative communication )

matlab程序设计以及绘图方面的相关基础资料，使用于初学者(matlab program design and drawing of the underlying data used for beginners)

LDPC码的matlab实现，把解码的部分改过了，实验过很多次，符合理论要求，码长越长误码率越低(The implementation of LDPC code in MATLAB has changed the decoding part. It has been experimented many times and meets the theoretical requirements. The longer the code length, the lower the bit error rate.)

说明：  matlab源程序 包含图像处理 OFDM的系统性能(matlab source code contains the OFDM system performance image processing)

cwp组织开发的matlab代码，用以研究各向异性介质中的地震传播规律，计算反射系数，速度，密度等(Contents of this directory are Matlab packages to perform the following tasks. NOLIN_Rp, Petr Jilek, (NOnLinear Inversion of Rp reflection coefficients) package REFLCOEF, Petr Jilek, displacement reflection coefficients at a planar interface and reflectivity modeling for P incident on anisotropic media (up to monoclinic) having a horizontal symmetry plane. LIN_Rp, Petr Jilek, joint linear inversion of approximate PP and PS wave reflection coefficients: current version designed for anisotropic media including isotropic, HTI, VTI, and orthorhombic symmetry. Multi_Comp_Stack_Vel_Tomo, Vladimir Grechka and Andres Pech, joint tomographic inversion of the NMO ellipses, reflection slopes, and zero-offset traveltimes of PP- and SS-waves. )

在matlab之中，用编程的方法实现了空间矢量PWM控制。(Space Vecter PWM)

matlab 拟合源代码，可以很好地处理离散型数据(matlab fitting source code, you can handle discrete data)

数字基带信号的传输是数字通信系统的重要组成部分。在数字通信中，有些场合可不经过载波调制和解调过程，而对基带信号进行直接传输。HDB3码的作用是对数字基带信号进行编码，便于在接收端对定时分量的提取。(Digital baseband signal transmission is an important part of digital communication system. In digital communication, some occasions without carrier modulation and demodulation process, and to direct transmission baseband signal. HDB3 code is used to encode digital baseband signal, facilitate at the receiving end of timing component extraction. )

scrambling and descrambling

说明：  使用个股日内髙频收益率计算己实现值进行分析,同时计算得到二阶矩 和高阶矩值并进行对比。本文根据己实现量的大小将所有样本股分为己实现值由 小到大的姐别,分别跟踪各股票组合的收益,探索预期收益与个股己实现值之间 的变化关系,然后将分组的结果应用于多空策略,为提高资产配置收益提供参考。 同时,将各己实现变量和各类对预期收益产生影响的控制变量放在一起构建 Fama-MacBeth截面回归,分析高频已实现量是否具有定价能力。(The realized value is calculated by using the daily gust rate of return of individual stocks, and the second-order moments are obtained by calculating at the same time. Comparisons are made with higher order moment values. This paper divides all sample stocks into realized values according to the size of realized stocks. Sisters from small to large track the earnings of each stock portfolio, and explore the relationship between expected earnings and the realized value of each stock. Then the grouping results are applied to the multi-empty strategy to provide reference for improving asset allocation returns.)