cryptography

algo for making sample matrix inversion response pattern

地震褶积模型，最简单的抛物线，可以在修改增加内容(seismic conv models)

图像的统计独立分量分解程序包，可以用于人脸识别，非监督分类，信号提取等领域(Image independent component decomposition of the statistical package, can be used for face recognition, non-supervised classification, the fields of signal extraction)

用有限元进行桁架结构应力应变的计算绘图实例的分析。(Using the finite element calculation drawing of the truss structure of stress-strain analysis of the instance.)

Bidirectional extreme learning machine - B-ELM Y. Yang, Y. Wang, and X. Yuan, "Bidirectional extreme learning machine for regression problem and its learning effectiveness," IEEE Transactions on Neural Networks and Learning Systems, Vol. 23, pp. 1498 - 1505, 2012

Plot a 16-QAM signal constellation with annotations that indicate the mapping from integers to constellation points. The solution uses the scatterplot function to create the plot and the text function in MATLAB to create the annotations.

说明：  最基础的GS算法，包含matlab代码，以及一张bmp格式的图，非常基础易懂(The most basic GS algorithm, including Matlab code, as well as a BMP format diagram, very basic and easy to understand)

MATLAB绘图教程~PPT格式~介绍各种基本绘图命令(MATLAB graphics tutorial ~ ~ PPT format introduce basic drawing commands)

说明：  根据语音信号的特点给出有关滤波器的性能指标：1）低通滤波器性能指标，fp=1000Hz，fc=1200 Hz， As=100dB，Ap=1dB；2）高通滤波器性能指标，fc=2800 Hz，fp=3000 Hz As=100dB，Ap=1dB；3）带通滤波器性能指标，fp1=1200 Hz，fp2=3000 Hz，fc1=1000 Hz，fc2=3200 Hz，As=100dB，Ap=1dB。用IIR对其分析，最后，利用MATLAB中的函数freqz画出各滤波器的频率响应。(This article according to the IIR filter and the FIR filter characteristic, uses the bilinearity method of transformation under the MATLAB bad boundary to design IIR and to design the FIR numeral filter separately with the window box number, and carries on the analysis to the gathering pronunciation signal, and finally gives IIR and FIR to the pronunciation filter effect.)

用Hausdorff距离对两角点集进行配准，得到点集间的仿射变换，从而实现图像的自动配准。此算法以角点作为Hausdorff距离的配准特征，与直接选用边缘来配准的方法相比较，大大减小计算量。(Hausdorff distance on the corners with a point set registration, be affine transformation between sets in order to achieve automatic image registration. This algorithm is based corner as the Hausdorff distance matching characteristics, and use Edge to direct registration method of comparison, greatly reduced computation.)