pca

说明：  本程序对输入序列din实现DIT——FFT基2算法，点数取大于等于din长度的2的幂次(The program realization of the input sequence din DIT- FFT radix-2 algorithm, din length greater than or equal points to take a power of 2)

数学建模定阶程序，最小二乘，递推最小二乘，增广矩阵法，信噪比的程序(Mathematical modeling of order determination procedure, least squares, recursive least squares, the augmented matrix method, the program signal to noise ratio)

说明：  对一副测试图像进行加各种噪声，然后进行多帧平均，中值滤波，均值滤波，维纳滤波，理想低通滤波，巴特沃斯低通，带通滤波，自适应滤波九种方法处理，并分析结果，得出各种滤波方法的优缺点。包括实验报告(Plus a pair of test images of all kinds of noise, and then multi-frame averaging, median filtering, mean filtering, Wiener filter, the ideal low-pass filter, Butterworth low-pass, band pass filtering, adaptive filtering nine kinds of approach and analyze the results, obtained the advantages and disadvantages of various filtering methods. Including the lab report)

对周围相邻的 8 邻居求和（元胞只有两种状态，0 或 1 ）。元胞也有一个单独的状态参量（所谓 记录 ）记录它们之前是否有非零状态的邻居。 在 0 与 1 之间产生一个随机数 r 。 如果总和> 0 （至少一个邻居）并且 r >阈值，或者元胞从未有过一个邻居，则元胞= 1 。 如果总和> 0 则设置"记录"的标志，记录这些元胞有一个非零的邻居。 (8 adjacent neighbors on the surrounding sum (cell only two states, 0 or 1). Cell also has a separate state parameters (so-called ' records' ) record that they have non-zero state before the neighbors. Between 0 and 1 generate a random number r. If the sum of> 0 (at least one neighbor) and r> threshold, or the cell has never had a neighbor, then cell = 1. If the sum> 0 set the " record" sign, record the cell has a non-zero neighbors.)

为了有效对抗灵巧噪声，从雷达信号与噪声信号的产生原理出发，对比了 2 种信号的时、频域差别，并就对抗技 术进行了针对性探讨，研究表明结合信号特征差异识别和针对性的噪声对抗技术能够有效解决灵巧噪声干扰问题(In order to effectively fight smart noise generated from the principle of the radar signal and noise signal of departure, when comparing the two kinds of signals in the frequency domain differences, and to explore targeted against technology, research shows that differences in signal characteristics combined with the identification and targeted Noise confrontation smart technology can effectively solve the noise problem)

通过matlab实现的2维小波变换程序，代码书写规范标准，易于读懂，运行简单(Matlab achieved through a two-dimensional wavelet transform, code writing standards, easy to read, simple operation)

JSON library SimpleJSON

鲁棒主成分分析 低秩与稀疏矩阵分解 增广拉格朗日 图像重建、去噪(robust pca low-rank and sparse matrix decomposition)

说明：  实现回波抵消功能的代码，在MATLAB中实现达到了消除回波的作用，效果很好(Achieve echo cancellation function code, in MATLAB to achieve to achieve the elimination of the role of echo, very good)

Gaussian mixture model digetal matlab procisssing