centralldiifference

说明：  RS的编码就是计算信息码符多项式，除以校验码生成多项式之后的余数；rs编码的基本实现，包括add,mul函数等；(RS coding is to calculate the information symbol code polynomial, divided by the check code generator polynomial after the remainder rs basically coding, including add, mul function, etc. )

小波包分析提取振动信号中的特征频率，有借鉴意义哦，LDPC码的完整的编译码。( Wavelet packet analysis to extract vibration signal characteristic frequency, There are reference Oh, Complete codec LDPC code.)

ldpc码在AWGN信道下的性能仿真。包括geth.m,getG.m,H2G.m,decode.m,BER.m按传统的编码方案编码，生成H矩阵后转化为G矩阵，编码后送入高斯信道。仿真得到BER性能(ldpc codes in the AWGN channel performance simulation. Including geth.m, getG.m, H2G.m, decode.m, BER.m coded according to the traditional encoding scheme to generate H matrix is transformed into G matrix encoded into the Gaussian channel. Simulation, the BER performance)

基于matlab的指纹库识别，指纹识别(matlab)源代码。(Matlab-based fingerprint database recognition, fingerprint recognition matlab source code.)

几种典型的混沌系统的最大Lyapunov指数的仿真实现(Several typical chaotic system the largest Lyapunov exponent of the Simulation)

说明：  gui用户界面，傻瓜式读取任意oisst的nc文件，并绘制sst全球分布图(GUI user interface, reading NC files of any oisst and drawing global distribution map of SST)

说明：  利用matlab生成的随机数做蒲丰（buffon）投针问题．(Is Pu Feng using the matlab production s random number (buffon) to throw the needle question. )

从数字电路角度，分析PI(比例和积分）环路滤波电路所组成的闭环控制环路的传输函数以及误差传输函数的形状，从中可以看书环路的peaking，3db带宽以及稳定性等性能(From the perspective of digital circuits, analyze the PI（propotional & integral) loop filter s closed-loop transfer function as well as the error transfer function, from which you can easily see the loop peaking factor, 3db bandwidth, and stability performance of the closed loop)

BLDC SIMULATION FOR DOWNLOAD TO GET DETAIL

In this paper, we present a novel data-based method for simultaneous Maximum Likelihood (ML) symbol and carrier-frequency o畇et estimation in Orthogonal frequencydivision multiplexing (OFDM) systems. Statistical properties introduced by the cyclic pre痻, a guard space between OFDM symbols, provide su眂ient information about the unknown parameters. It is shown that the redundancy introduced by this cyclic pre痻 allows the estimation to be performed without additional pilots. Simulations show that the performance of the frequency estimator is applicable in a tracking mode while the timing estimation can be used in an acquisition mode.