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QAM modulation and demodulation,qpsk modulation and demodulation

说明：  vhdl 初学例程，对于初学者有很大的参考价值哦(VHDL beginner routines for beginners have great reference value oh)

这是一个Matlab实现的图像Sparcy变换的程序，有助于了解多尺度变换。(This is a Matlab implementation of the image Sparcy transformation process, help to understand multi-scale transformation.)

基于matlab的语音信号处理的几篇论文，涉及自相关基音检测、时域频域参数分析等(Based on several papers matlab speech signal processing, involving autocorrelation pitch detection, time domain analysis, frequency-domain parameters)

用MATLAB编写的计算线性微分方程挺好的源码资料(MATLAB prepared by the calculation linear differential equation of good source material )

通过在lmd中加入白噪声对信号进行分析，得出仿真图(through adding white noise in LMD to analyze the signal , get the simulation map)

双门限法,双门限法的改进和推广,相关法的端点检测,方差法的语音端点检测,谱距离法的端点检测，谱熵在端点检测中的应用(Double threshold method, double threshold method improvement and promotion, endpoint detection correlation method, endpoint detection variance method, the endpoint detection spectral distance method, the Spectrum Entropy in the endpoint detection)

车联网仿真，路边单元场景仿真，单路边单元、双路边单元、城市场景。(Vehicle network simulation, roadside unit scene simulation, single side cell, double roadside unit and urban scene.)

里面有关于MATLAB的基本使用的方法和定义，初学者可以好好的(There are on the basic use of MATLAB methods and definitions, can be good for beginners)

这是QAM(正交幅度调制)的MATLAB仿真源程序(This is a QAM (quadrature amplitude modulation) of the MATLAB simulation source)