BP神经网络参考代码

说明：  通信原理虚拟实验平台的设计与实现，希望对大家有用(Virtual Experiment Platform for Communication Theory Design and Implementation, we hope to be useful)

本程序的目的是模拟一个ARMA模型，然后进行时频归并。考察归并前后模型的变化。(The purpose of this program is to simulate a ARMA model and then to merge time and frequency. The changes of the model before and after the merging were investigated.)

说明：  本文设计了一款人体行为异常监控系统，主要适用人群是老年人，在摄像头固定的情况下，自动检测人体运动轨迹，并与提前设定好的行为库进行匹配，分析判断是否具有异常行为。 在数字图像预处理部分采用了图像二值化，腐蚀与膨胀等几种方法为人体目标的跟踪和检测做准备。为了克服在实际操作中遇到的问题，采用了帧差法和ViBe算法，帧差法即利用帧间变化与当前帧、背景算法来判断它是否大于阈值，并分析视频中序列的运动特性，ViBe算法则是一种背景建模的方法，背景模型是由邻域像素来创建，并对比背景模型、当前输入像素值检测出前景，确定视频中的目标跟踪。在人体行为识别中，运动目标最小长宽比以及连续帧间的加速度来判断人体行为是否异常，如果检测到异常的行为比如说摔倒、快跑等行为，在识别的过程这种实时监测。不同环境可能需要调试，要求有一定编程基础，小白慎入。(In this paper, a monitoring system for abnormal human behavior is designed, which is mainly applicable to the elderly. When the camera is fixed, it can automatically detect the human motion track and match with the behavior database set in advance to analyze and judge whether there is abnormal behavior.)

说明：  关于matlab和delphi的接口的描述文档，建议学习此混合编程的人看看。(On matlab and delphi interface description document, the proposed study were to see this mix of programming.)

神经网络在matlab上的实现的源代码，本程序可用于分类问题(Matlab neural network to realize the source code, the procedure can be used for classification problems)

此程序主要是用Matlab进行点云数据的三维建模，对用Matlab进行三维重建有实用价值。 (The procedure is to use Matlab for modeling three-dimensional point cloud data on the three-dimensional reconstruction with Matlab has practical value.)

基本蚁群算法解TSP问题[matlab程序，大家参考(basic ACO for TSP [Matlab procedures, reference)

基于bdpca重构的matlab程序，附带图片，适合于表情识别初学者研究学习。(a matlab code of bdpca reconstruction with some expression pictures which is really useful for expression recognition researchers.)

说明：  摘要：用MATLAB对基带数据传输解调检测进行仿真，推导不同先验概率下，接收端最小错误的判决门限。仿真不同先验概率下的误码性能，二进制与多进制的误码性能比较，码间串扰对误码性能的影响，及频偏对串行通信误码率的影响。 关键词：MATLAB，基带传输，检测，判决门限 (Abstract: Using MATLAB for baseband demodulation simulation data derived under different prior probability, the receiver decision threshold minimum error. Simulation under different prior probability of error performance, binary and multi-bit error performance of binary comparison ISI on the BER performance, and the offset of the serial communication error rate. Keywords: MATLAB, baseband transmission, detection, decision threshold)

matlab 和 c 实现的 sift 算法(the excutable code implemented by matlab and c of sift algorithm)