ofdm-mimo

说明：  压缩感知中基于DCT基的OMP算法，用正交匹配追踪重构出原始信号(DCT-based compressed sensing based OMP algorithm, orthogonal matching pursuit reconstruct the original signal)

求解路径问题,目标函数时间最短,主要适用管科物流等专业学习使用,对时间,空间复杂性没有优化.(Solving the path problem, the objective function time is the shortest, which is mainly used for professional learning and learning, such as tube logistics, and it is not optimized for time and space complexity.)

OFDM完整的程序，比较简单，采用QPSK调制，加了高斯噪声(OFDM complete procedure is relatively simple, using QPSK modulation, Gaussian noise added)

采用某种算法对样本进行分类，当有新的样本时把它们归到哪一类中，可以采取一些工具箱(Using an algorithm to classify the samples, when new samples to a class where they go, you can take Toolbox)

一本关于Matlab仿真通信系统的书，很系统全面地讲解了各个通信系统部分，及其matlab仿真，并附有相应的Matlab练习题。(a book about simulating communication systems using matlab. Very comprehensive explanation and corresponding matlab code, and exercises.)

韶山电力机车三段桥在电感情况下波形三段桥仿真波形，电动机等效为电感，反电动势(Shaoshan electric locomotive segment bridge waveform in the inductive case of the three sections of the bridge simulation waveform, the motor equivalent inductance, back electromotive force)

说明：  实验目的：对带通信号及其低通等效信号进行分析和仿真。 实验内容： 1、参考教材P24面例子，考虑如下带通信号，编写仿真程序实现，得出仿真结果。 （1） 画出该信号和它的幅度谱； （2） 求出该信号的解析信号，并画出它的幅度谱； （3） 求出并画出该信号的包络； （4） 分别假设 和 ，求该信号的低通等效，并画出它的幅度谱。 2、设带通信号为： 通过Matlab编程仿真实现： （1） 画出该信号和他的谱函数（包括幅度和相位） （2） 确定并画出解析信号的谱函数（包括幅度和相位） （3） 画出该信号的包络。 （步骤一，二中，设采样间隔为ts=0.002s）。 (Purpose: To Bandpass and lowpass equivalent signal analysis and simulation. Experiment: 1, reference materials P24 plane example, consider the following bandpass signals, writing simulation program implementation, simulation results obtained. (1) Draw the signal and its amplitude spectrum (2) Find the analytical signal of the signal, and plot its amplitude spectrum (3) Find and draw the envelope of the signal and (4) respectively assumptions and seeking the equivalent lowpass signal and draw its amplitude spectrum. 2, is provided with a communication number: Simulation by Matlab programming: (1) Draw the signal and his spectral function (including amplitude and phase) (2) to identify and draw the analytic signal spectral function (including amplitude and phase) (3) Draw the envelope of the signal. (Step one, two, and set the sampling interval ts = 0.002s).)

Encoding of LDPC codes

说明：  粒子群优化算法的基本思想是通过群体中个体之间的协作和信息共享来寻找最优解．(Particle swarm optimization algorithm based on the idea that groups of individuals through collaboration and information sharing to find the optimal solution.)

Hilbert-Huang变换之EMD分解程序。可以直接运行，以及附有几个详细例子。可以用以对非线性非平稳信号的处理，效果理想。(Hilbert-Huang transform EMD decomposition process. Can be run directly, as well as with several detailed examples. Can be used for non-linear non-stationary signal processing, the results are satisfactory.)