bilallab321

扩频序列的误码率性能仿真程序，在matlab下运行(Sequence Spread Spectrum BER performance simulation program, run under Matlab)

说明：  一种ofdm频偏估计误差的方差MATLAB程序，可以运行，能得到结果图 (A frequency offset estimation error variance ofdm MATLAB program, you can run, can get results map)

2阶Runge_kutta解微分方程 调用格式同ode45， f为微分方程函数，a b为积分区间，x0初值 h为步长，默认为0.001(Differential Equation of Order 2 Runge_kutta call format with ode45, f for the differential function, ab for the integration interval, x0 h for the initial step, the default is 0.001)

圆卷积与线卷积在FIR中的实现，通过程序还开深刻理解两者间的差别和各自优劣。 1.圆卷积用在被截出的某段数据中，此时，长度应该定为和输入数据长度一致（一般输入数据大于hn的数），这时圆卷积结果相当于某段被截断出来的数据以非截断的方式经过滤波而得出的结果；线卷积用在各自独立的，离散的数据中，若截断数据也用线性卷积来计算，那么就相当与这部分数据是与源数据是独立的， 得出的结果时域两端会变长，但频谱基本上一样的。差别可以想象。 2.注意圆卷积最开始的输入数据的次序，构造矩阵时要注意。(Circular convolution with the line convolution in the FIR implementation, the program also opened a deep understanding of the difference between the two and their respective pros and cons. A circular convolution with cut out a certain period of data At this point, the length should be set for the same length as the input data (typically input data greater than hn the number), when the circular convolution is equivalent to a certain the results of the truncated data to the non-truncated filtered line convolution with a separate, discrete data, truncated data with a linear convolution calculation, then the equivalent of this part of the data is independent of the source data, the results of both ends of the time domain becomes long, but the spectrum is basically the same. The difference can imagine. Note that the order of the circular convolution of the input data to construct matrix.)

IIR和FIR滤波器的设计，用脉冲响应不变法和双线性变换法设计IIR滤波器，用窗函数法设计了FIR滤波器。(IIR and FIR filter design, with the impulse response method and the bilinear transform IIR filter design using window function design of the FIR filter.)

经典的莫泰识别分析软件 diamond,在matlab平台下(diamond matlab toolbox)

BEC_decode ldpc and BEC channel

OFDM与SC-OFDM仿真以及runSimSCFDMA等(OFDM and SC-OFDM simulation and runSimSCFDMA etc.)

说明：  matlab 使用自定义函数，进行幂函数拟合。(use a custom matlab function for fitting the power function.)

说明：  这份资料是关于MATLAB的初级介绍，对于初学者非常实用，如果想快速学会使用matlab,建议大家先看看这份资料。谢谢！(This information is on the MATLAB primary introduction is very useful for beginners, if you want to quickly learn how to use matlab, suggest that you take a look at this information. Thank you!)