Digital

Construct a Low Density Parity Check Matrix for the three code rate of DTMB standart of TDT. The data has obtain of GB2006-20600 paper.

pls check aprior for my reference

高速铁路路基沉降是一个复杂的系统过程,涉及不同时期、不同工况,选用单一的预测模型不足以反映路基整体的变形规律.Logistic模型及Verhulst模型的曲线均为S形,可以反映全过程的地基沉降与时间的关系.针对路基填筑期和降水期两个时段利用MATLAB软件编制程序计算模型参数,得到Logistic模型和灰色Verhulst模型,进而求得两者的最优加权组合模型.对比结果表明:在路基填筑期由两者的最优加权组合模型预测得到的结果与实测结果较吻合,拟合精度高于单一模型 而在降水期Verhulst模型的预测值更接近实测值,平均相对误差约为1.75％,拟合精度较高.(High-speed railway subgrade settlement process is a complex system involving different times and in different conditions, the choice of a single forecasting model does not adequately reflect the overall deformation of roadbed. Curve Logistic model and Verhulst models are S-shaped, the whole process can be reflected foundation settlement versus time. against roadbed construction period of two hours and precipitation using MATLAB software programming model parameters, the Logistic model and gray Verhulst model, and then get the optimal model of a weighted combination of the two. comparative results indicate : results and experimental results in the roadbed construction period by the weighted combination of the best of both models predicted than the anastomosis fitting accuracy than a single model precipitation predicted value of Verhulst model closer to the actual value of the average relative error approximately 1.75 fitting accuracy.)

基于simulink的节气门控制算法设计 文档资料的 实际simulink 文件(Simulink based throttle control algorithm design the actual Simulink file of document data)

DFA，MFDFA,分形去趋势分析和多重分形去趋势分析(Dfa, MFDFA(detrended fluctuation analusis,multifractal detrended fluctuation))

mathworks公司开发的GPS工具箱,有一定参考价值,但需要进一步完善(MathWorks developed GPS toolbox, must have reference value, but necessary to further improve the)

matlab function 图像增强 1. 直方图均衡化的 Matlab 实现 1.1 imhist 函数 功能：计算和显示图像的色彩直方图 格式：imhist(I,n) imhist(X,map)(matlab function)

FIR high pass filter...

matlab中将数据输出保存为txt格式文件的几种方法.(matlab will save the data output to txt format files in several ways.)

数值分析的EULER法，小波包分析提取振动信号中的特征频率，isodata 迭代自组织的数据分析。( EULER numerical analysis method, Wavelet packet analysis to extract vibration signal characteristic frequency, Isodata iterative self-organizing data analysis.)