MainPre_by_Lya_1

伽辽金最小二乘无网格法、伽辽金配点无网格法等(伽辽金最小二乘无网格法、伽辽金配点无网格法等，其中许多内容都是作者课题组在国家自然科学基金资助下取得的成果。书中给出了作者用C++研制的面向对象的无网格法程序OMLL，另外各章都给出了相应的MATLAB 程序，以帮助读者理解各种无网格方法的程序实现过程。)

emd经验模态分解 对振动信号进行emd分解后可以得到若干个imf,然后便可以进行希尔伯特黄变换，判断故障。(emd, it is used to analyse a signal)

通过简单的MATLAB程序实现对少量的语音信号的是识别( Simple MATLAB program to achieve a small amount of the speech signal is to identify)

从经典功率谱估计周期图法原理入手，从理论上分析了其存在的局限性，借助Welch算法对其进行修正。依靠Matlab强大的数值分析和信号处理能力，进行实验仿真，比较不同的窗函数，不同的数据长度对Welch法谱估计质量的影响，并分析了造成这些影响的原因。(The paper mainly introduces the principles of Periodogram method of classical PSD estimation,analyzes the deficiency of Periodogram method in theory,and makes use of Welch to amend Perodogram method. By the use of simulation in Matlab, the impacts of different window function and different lenghth of data on estimation quality of Welch are discussed and the reasons of the impacts are analyzed.)

说明：  该代码从polar信道编码到SC译码算法在BEC信道上进行全面仿真。仿真结果是基于不同码率的误块率。(The code from polar channel coding to SC decoding algorithm is simulated in BEC channel. The simulation results are based on different bit rate block error rate.)

introduce install omnet by video

电力系统潮流计算中求解系统功率损耗部分Matlab源程序(Matlab source code, part of the system power loss to solve power flow calculation)

一款电气化处理的强大软件 一款电气化处理的强大软件(A very powerful software A very powerful softwareA very powerful software A very A very powerful software A very )

doa估计的各类经典算法, 适合信号方位估计的各类参考(doa estimation algorithm classic, simple DOA estimation algorithm, algorithm)

ofdm系统中功率自适应分配算法研究的matlab源代码（k＝20）(ofdm Power System Adaptive Algorithm for the distribution of the source code Matlab (k = 20))