Digital-Signal-Processing

主要研究ＯＦＤＭ的信道编码中ＬＤＰＣ码的原理和图示(Principles and icons of the main OFDM channel coding, LDPC codes)

SUPPORTING FILE FOR CONVERT GREYSCALE INTO BINARY STERAM

BP神经网络的数据分类——————语音特征信号分类(Data BP neural network classification speech characteristic signal classification)

说明：  matlab code about image processing

自己编的完整的matlab程序，利用Toeplitz算法进行DOA估计，matlab程序，估计精度不错( )

说明：  《Matlab与C++》这本书的第5章，包含matlab程序和C++程序(&quot Matlab and C++&quot Chapter 5 of this book, including the matlab program and C++ program)

We see that HTH matrix is almost diagonal as the off diagonal elements are nearly zero. So we are getting exact estimation in case of PRN INPUT due to diagonality of HTH matrix. As seen that the unknown inpulse response ( h ) and estimated impulse response ( hth ) are coming out to be exactly same. The estimation even gets better for large N .as we get the HTH matrix perfect diagonal. So we come to know that we can estimate the unknown parameters exactly when PRN input is used.

该程序用于基于认知无线电NC-OFDM系统的仿真，用来计算信号的功率谱密度(The program for the NC-OFDM Cognitive Radio system simulation for calculating the power spectral density of the signal。)

瑞利信道下，stbc22,24,44，wuma仿真，以及通过奇异值分解的44天线的误码仿真，(Rayleigh channel, stbc22, 24,44, wuma simulation, as well as through the singular value decomposition of 44 antennas BER simulation,)

Simple program to nothing to do