各种信息熵

阵列信号处理是信号处理领域内的一个重要分支，在近些年来得到了迅速发展。波达方向（Direction of Arrival，DOA）估计是阵列信号处理的一个重要的研究领域，在雷达、通信、声纳、地震学等领域都有着广泛的应用前景。在DOA估计的发展过程中，人们对高分辨DOA估计算法一直有很大的研究兴趣，并在这一领域取得了很多重要的进展。本文主要研究经典的多重信号分类（Multiple signal Classification，MUSIC）算法。 本文首先回顾了空间谱估计技术的发展过程及现状，比较详细的介绍了空间谱估计基础和DOA估计模型，研究了DOA估计中的MUSIC算法，给出了MUSIC算法的原理和步骤，并通过一些计算机仿真实验，得出了MUSIC算法的性能分析。最后做了全文总结，归纳了本文所做的工作和结论。(Array signal processing is an important branch in the field of signal processing. It has been developing rapidly in recent years. Direction of Arrival (DOA) estimation is an important field of array signal processing. It has a wide range of applications in radar, communication, sonar, seismology and other fields. In the development of)

说明：  JC和响应面法相结合，可用于可靠性分析及优化分析(The combination of JC and response surface methodology can be used for reliability analysis and optimization analysis.)

图形图象处理作业原代码 可以为学习者提供实验小程序-graphic image processing operations as the original code can provide learners experimental procedure

说明：  主成分分析方法PCA与灰度共生矩阵GLCM 主成分分析方法是一种使用最广泛的数据降维算法。 灰度共生矩阵是一种描述图像局部区域或整体区域的某像素与相邻像素或一定距离内的像素的灰度关系的矩阵。即求灰度图像中某种形状的像素对，在全图中出现的次数。(PCA and Gray Co-occurrence Matrix GLCM The principal component analysis method is one of the most widely used data reduction algorithms. The gray level co-occurrence matrix is a matrix describing the gray level relationship between a pixel in a local area or an entire area of an image and neighboring pixels or pixels within a certain distance. That is to find the number of times a pixel pair of a certain shape appears in the whole image in a grayscale image.)

说明：  可以对三角形、四边形、梯形、椎体、圆柱体等一些简单图形进行面积或体积的计算！（界面的语言为汉语）(It can calculate the area or volume of some simple figures such as triangle, quadrilateral, trapezoid, cone, cylinder, etc! (the interface language is Chinese))

经典算法prony算法仿真ofdm系统程序，可用于估计ofdm系统存在的频偏(this is matlab code for prony signal processing method. (The classic algorithm matlab procedures, can be used to estimate the frequency offset in OFDM system))

说明：  基于python的俄罗斯方块小游戏，有详细的代码解释，是用pyqt写的。(A little game of Tetris based on Python,There is a detailed code explanation, which is written in pyqt.)

说明：  [Numerical Methods in Engineering with MATLAB]2005 and midterm exam problems at Ulsan National Institute of Science and Technology

说明：  基于Matlab GUI的FIR滤波器 实际中，一般调用MATLAB信号处理工具箱函数remezord来计算等波纹滤波器阶数N和加权函数W(ω)，调用函数remez可进行等波纹滤波器的设计，直接求出滤波器系数。函数remezord中的数组fedge为通带和阻带边界频率，数组mval是两个边界处的幅值，而数组dev是通带和阻带的波动，fs是采样频率单位为Hz。(FIR filter based on matlab gui. In practice, the MATLAB signal processing toolbox function remezord is generally called to calculate the order N of the equiripple filter and the weighting function W . The call function remez can be used to design the equiripple filter and directly calculate the filter coefficients. The array fedge in the function remezord is the pass-band and stop-band boundary frequencies, the array mval is the amplitude at the two boundaries, the array dev is the fluctuation of the pass-band and stop-band, and fs is the sampling frequency unit in Hz.)

三相PWM整流器的预测直接功率控制，参数已经设置，可以进行仿真(Predictive direct power control of three-phase PWM rectifier, whose parameters have been set, can be simulated.)