25811214ldpc_toolkit_1_1

频域信号分析，bode图，相位图，幅频图(Frequency domain signal analysis , bode diagram, phase diagram , the amplitude-frequency diagram )

针对双极性、单极性码产生直扩系统，并加上宽带噪声干扰，(For bipolar, unipolar codes have a direct expansion system, and with broadband noise,)

此文件介绍了matlab的基础知识，适合于初学者进行学习，希望对大家有所帮助(This document describes the basics of matlab, suitable for beginners to learn, we want to help)

经典的瑞利衰落信道仿真模型-jakes模型。程序可以修改不同的入射路径个数。仿真结果是不同入射路径个数的jakes模型和同分布的瑞利衰落的包络分布对比。直接运行“tu.m”(The classic Rayleigh fading channel simulation model-jakes model. Program can modify the number of incident path. The simulation results compare jakes model of different incident paths with distribution of Rayleigh fading.)

在MATLAB中求图像纹理特征，相控阵天线的方向图（切比雪夫加权），matlab程序运行时导入数据文件作为输入参数，合成孔径雷达（SAR)目标成像仿真，采用加权网络中节点强度和权重都是幂率分布的模型，采用了小波去噪的思想。( In the MATLAB image texture feature, Phased array antenna pattern (Chebyshev weights), Import data files as input parameters matlab program is running, Synthetic Aperture Radar (SAR) imaging simulation target, Using weighted model nodes in the network strength and weight are power law distribution, Using wavelet denoising thought.)

LMS算法验证，节实验数据说明和程序设计(LMS algorithms and test data section, and program design)

这是一个耗时巨长的程序，很费脑筋，所以大家一定要珍惜，希望对大多数人有所帮助，如有问题，可以联系我591805444（QQ）(This is a time-consuming giant long procedures, is very annoying task, so we must cherish, hope to most people help, if there is a problem, can contact my 591805444 (QQ))

根据国标编写的数控机床轴线定位精度和重复定位精度计算程序( a matlab source code to calculate positioning accuracy and re-orientation accuracy )

说明：  这个是矢量控制，对三相异步电动机，仿真结果是正确的(This is vector control. For three-phase asynchronous motor, the simulation result is correct)

通信系统的仿真代码，多径信道的仿真，多径时变的信道仿真。(Communication system simulation code, simulation of multipath channel, time-varying multipath channel simulation.)