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Calculating Fir filters in Matlab.

在中国学习信号处理的大概没有谁没听说过本书的作者之一Oppenheim。 这是一本入门性的书，介绍如何使用MatLab进行信号分析。 (Computer-Based Exercises for Signal Processing Using MATLAB 5 )

This code show and explain (in portuguese) a simple Block Code to BSC channel.

MATLAB中的柱状图颜色替换为网格或者斜线等的调用函数源代码，易于区分(MATLAB histogram of color is replaced by the calling function of grid or slash source code, easy to distinguish)

利用matlab归一化算法提取边缘后配准目标图像，并能框出目标物(get edge )

本算法程序基于实测汽轮机振动信号进行了测试及性能分析。理论分析及仿真结果表明，AR模型谱估计算法在阶次合适的情况下，能够取得较好的方差及分辨力性能，适合于振动信号的功率谱估计，且AIC准则为确定合理的模型阶次提供了有效依据。(This algorithm based on the measured turbine vibration signal testing and performance analysis. Theoretical analysis and simulation results show that, AR model spectrum estimation algorithm in appropriate circumstances the order, the variance can achieve better performance and resolution, suitable for vibration signal power spectrum estimation, and the AIC criterion to determine a reasonable model order provides an effective basis.)

harq in lte for channel coding in matlab to correct error in 4g

利用Matlab仿真软件，完成如图1所示的一个基本的数字通信系统。信号源产生0、1等概分布的随机信号，映射到16QAM的星座图上，同时一路信号已经被分成了实部和虚部，后边的处理建立在这两路信号的基础上。实部、虚部信号分别经过平方根升余弦滤波器，再加入高斯白噪声，然后通过匹配滤波器（平方根升余弦滤波器）。最后经过采样，判决，得到0、1信号，同原信号进行比较，给出16QAM数字系统的误码。(Using Matlab simulation software, as shown in Figure 1 to complete a basic digital communications systems. Signal source such as arise over the distribution of 0,1 random signal, is mapped to 16QAM constellation diagram, at the same time all the way the signal has been divided into real and imaginary parts, behind the deal with the establishment of these two signals in the basis. Real part, imaginary part of the signal, respectively, after a square root raised cosine filter, then add white Gaussian noise, and then through the matched filter (square root raised cosine filter). Finally, after sampling, the verdict has been 0,1 signal, to compare with the original signal is given 16QAM digital system error.)

运用FDTD算法计算了喇叭天线的近场分布，有一定的参考价值。(Use the FDTD algorithm to calculate the the horn antenna near-field distribution, there is a certain reference value.)