dotmatrix2edemo

fisher线性鉴别分析的人脸识别，在ORL库上实验，可在其他库上运行(fisher linear discriminant analysis for face recognition, in the ORL database on the test can be run on other database)

本文基于BP神经网络应用于预测的原理，提出预测步骤及预测可行性，探讨建立基于BP神经网络的预测模型的关键技术，包括样本的选取与预处理、输入输出变量的选取、隐层节点数的确定、初始权值和阈值的选取、激活函数、训练算法与参数的选取，最后建立合理的网络模型；结合住宅市场的实际情况，建立两类BP 神经网络预测模型：基于时间序列的趋势预测模型以及基于影响因素的回归预测模型，即分别采用神经网络趋势预测和回归预测的思路，把住宅市场的供给、需求与房价的历年数据以及其影响因素的数据分别作为学习样本，建立预测模型，进行预测。(Real estate development risk prediction )

图像配准matlab的实现，可以实现图像的配准(image registration Matlab achieve, can achieve image registration)

本文件详细描述了如何利用matlab去检测图片中含有的直线元素，利用hough变换。(This document describes in detail how to use matlab to detect images containing linear elements using hough transform.)

说明：  基于扩展卡尔曼滤波算法在目标跟踪和距离测算中的应用(Application of extended Kalman filter algorithm in target tracking and distance measurement)

详细的介绍了matlab的实践原理，适合初学者(Detailed introduction to the principles of the practice of matlab for beginners)

说明：  bpsk仿真中间有两个方面的内容，很好的仿真软件(There are two files in the zip folder. bpsk_spread.m and jakesmodel.m Steps for simulation: 1] Run jakesmodel.m first 2] Then run bpsk_spread.m . 3] Note that during the first run bpsk_spread.m has no rayleigh fading.This is because the corresponding code has been commented 4] The resulting performance is stored in BER_awgn. 5] Now uncomment the Rayleigh Fading code in bpsk_spread.m file. 6] Same time comment BER_awgn (line 112) and uncomment BER_ray variable. 7] Run the simulation. )

说明：  介绍使用GPIB控制卡，控制仪器的方法，以及使用函数库编写程序对仪器进行读写控制等。(Introduced using the GPIB controller to control the instrument approach, and write programs using the library to read and write control of the instrument.)

关于HHT原理的详细叙述，文章阐述了HHT方法的实用性(HHT principle described in detail, the article explains the the HHT method of practicality)

对已知信号进行SSB调制，然后观察其频率域特性(Known signal SSB modulation, and then observe its frequency domain characteristics.)