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Low density parity check matrix(Description A program written for generating LDPC matrix in the as pattern as discussed in the research paper , " Time varying periodic convolutional codes with low density parity check matrix" by Alberto jiménez Felströ m and Kamil Sh. zigangirov IEEE Transaction on information theory vol 45 no 6 sept 1999. pages 2181-2191)

50欧姆,100欧姆板厚1.0MM8层板阻抗设计-金百泽阻抗控制结构确认函(1mm8layout100ohm50ohm Impedance matching )

this source code contain laplace edge detection code in matlab

matlab通信仿真， 信道编码，好东西(communication matlab simulation, channel coding, good things)

数字图像处理源代码 matlab编程实现(matlab Digital image processing source code )

Neville插值的源代码，用于Matlab科学计算与数据插值，可与牛顿插值等进行比较学习，适合matlab学习者参考。(Neville interpolation source code for Matlab scientific computing and data interpolation, Newton interpolation can be compared with the study for matlab learners.)

编写仿真程序画出(8，1)重复码系统在硬判决译码和软判决译码两种情况下的BER性能曲线（均采用最小距离译码）(Write simulation program, draw (8, 1) repeat code system in the hard decision decoding and soft decision decoding two cases of BER performance curve (both using minimum distance decoding))

慢速跳频，调制样式为DPSK(DPSK/FH)，包括信号的发射接收模型，自己写的代码，仅供参考。(Slow frequency hopping, modulation pattern for DPSK (DPSK/FH), including the launch of signal reception model, write your own code, for reference purposes only.)

Just have a look at it for OFDM....nice code

说明：  随机信号谱分析技术实现 随机信号谱估计及质量评价。 离散随机信号通过线性时不变系统时，系统所产生的响应。 功率谱估计的实现方法：自相关函数法、周期图法、Bartlett法、Welch法、MTM法、MUSIC法 (Random signal spectral analysis of random signal spectral estimation and quality evaluation. Discrete random signals through linear systems, the system generated response. Realization of the power spectrum estimation: autocorrelation function, periodogram, Bartlett law, Welch method, MTM method, MUSIC method)