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ni板卡 PCI6514在matlab simulink下的XPC 驱动程序，可以用于硬件在环系统(ni PCI6514 driver)

数字信号处理中，几个实验的matlab原代码。(Digital signal processing, Matlab several experiments the original code.)

pca 主成分分析的matlab代码。主成分分析（Principal Component Analysis，PCA）， 是一种统计方法。通过正交变换将一组可能存在相关性的变量转换为一组线性不相关的变量，转换后的这组变量叫主成分。(PCA principal component analysis matlab code. Principal component analysis (Principal Component, Analysis, PCA) is a statistical method. Through orthogonal transform a group may be related to variable conversion is not related to a set of linear variables, this set of variables called principal component transformation.)

particle swarm optimization

This function provides an interactive GUI for showing how the snake m-file works. For more information about the GUI press the help button. For more information about the snake function itself type help snake SNAKES - A MatLab MEX file to demonstrate snake contour-following. This Software was developed by Chris Bregler and Malcolm Slaney of Interval Research Corporation. Copyright (c) 1995 Interval Research Corporation. (This function provides an interactive GUI for showing how the snake m-file works. For more information about the GUI press the help button. For more information about the snake function itself type help snake SNAKES- A MatLab MEX file to demonstrate snake contour-following. This Software was developed by Chris Bregler and Malcolm Slaney of Interval Research Corporation. Copyright (c) 1995 Interval Research Corporation. )

通信实验中信号在随机信道中传输，其接收信号的瑞利分布，(A communication channel in a random test signal transmission, the received signal Rayleigh distribution,)

两种SQR迭代法:将x^K与上次计算的结果做加权平均作为最后结果(Two kinds SQR iterative method:the x ^ K and the results of the last calculated as a weighted average of the final results do)

本程序的性能已经达到较高水平，具有丰富的参数选项,是国外的成品模型，结合PCA的尺度不变特征变换(SIFT)算法，FIR 底通和带通滤波器和IIR 底通和带通滤波器，针对EMD方法的不足。

车辆识别的代码，背景差分法是对图像进行处理的最直接、最简单的一种方法，也是使用最广 泛的一种方法。其前提是图像的背景保持固定不变，基本思想是让采集到的图像 序列中每一帧都与不含运动物体的静止参考帧做差分运算，突出目标图像，即将 两幅图像做相减运算，具体可表达为

Lee滤波和精致Lee滤波 1、掌握Lee滤波与Refined-Lee滤波的原理及方法；  2、掌握Lee滤波与Refined-Lee滤波滤波效果ENL/ESI分析的原理及方法；  3、分析比较Lee滤波与Refined-Lee滤波的滤波性能； 4、分析滤波窗口与滤波效果的关系。