TwoCircleIntersection

将指纹图像分为好、中、差三类，然后根据典型的质量指标在各类质量中的影响度来设定相关的权重，以此可以更准确的表示图像质量，提高指纹识别的后续处理的准确性，系统的稳定性(Fingerprint image is divided into good, normal and poor, and then the typical quality indicators in the quality of the impact of various degrees to set the associated weight, this can be a more accurate representation of image quality and follow-up to deal with fingerprint recognition accuracy, system stability)

说明：  对初学matlab的学者，有着很好的指导作用，而且是ppt格式，易懂(How-to tutorials)

用matlab画球体和半球体，word格式里面包含代码和绘图效果(draw a sphere and hemisphere with matlab)

This program is to calculate the synchronous activity between eeg signal during epileptic attack

对于线阵的超声相控阵探头的指向性分析的程序，通过这个程序你可以了解超声相控阵探头(For the linear array of ultrasonic phased array probe directivity analysis procedures, through this program you can learn ultrasonic phased array probe)

利用粒子群算法求解基于时差无源定位的非线性方程，解决非线性方程的最优化问题。(passive location based on PSO)

说明：  神经网络 侯媛彬 西安电子科技大学出版社 全书程序文件夹CH8(Neural network)

提取镜头参数数的matlab算法，利用棋盘格靶标照片能直接计算出相机内参数(Extraction of lens parameters of the matlab algorithm, using the checkerboard target photos in the camera can be directly calculated parameters)

QAM simulation using a carrier cosine wave with ISI

提取数据波形时域特征（绝对幅值、平均值、峭度、过零点）并且用LDA分类(Time-domain waveform data extraction features (absolute amplitude, mean, kurtosis, zero crossing) and classification with LDA)