NIUDUNCHAZHI

a simple way to detect and analyse Abnormal crowd

粗糙集结合遗传算法纠结是集中的一个问题，附论文和论文中的代码。(Tangled rough sets and genetic algorithm is a problem concentrated, with papers and papers code.)

该程序实现两种具有代表性的EKF与UKF方法在目标跟踪中的性能对比，具体通过MSE实现跟踪效果。(The program implements two methods EKF and UKF representative performance comparison in target tracking, specifically by MSE achieve tracking.)

对花卉的数据集分别通过“五折法”、随机产生训练样本、欧式平方距离、绝对值距离、契比雪夫距离和马氏距离进行数据集的识别。(Data sets, respectively, for flowers through the " half of Law" , randomly generated training samples, European squared distance, absolute distance, Chebyshev distance and Mahalanobis distance for data set identification.)

考察Rayleigh衰落信道下，采用实际产生的信道参数进行解码的BER性能（理想信道估计）(Examine Rayleigh fading channels, using the effective channel parameters generated decoding BER performance (ideal channel estimation))

说明：  matlab实现K-L变换,可用于图像去噪，地震资料去噪(K-L transform. It can be used in noise reduction and image enhancement)

说明：  这是一个关于无际卡尔曼滤波的源程序，可以帮助初学者学习该滤波算法(This is a Kalman filter on the infinite source that can help beginners learn the filtering algorithm)

说明：  图4.7给出了V=4，相位集合的相位数分别为P=1、2、4、8时的随机分割的PTS-OFDM系统的CCDF的性能图。仿真参数：分割方法为随机分割，子载波数N=128，子载波数据采用QPSK调制，仿真的OFDM符号数为1000个。(Figure 4.7 shows the V = 4, the phase of the collection phase, respectively P = 1,2,4,8 were separated when the PTS-OFDM system performance CCDF graph. Simulation parameters: Segmentation of random division, the number of subcarriers N = 128, sub-carrier data using QPSK modulation, simulation of the OFDM symbol number 1000.)

这是一个数格网论的MATLAB程序源码，它可以用来产生样本数据(This is a number grid on the MATLAB program source code, it can be used to produce sample data)

用hilbert算法对信号的包络线进行提取，既有单一包络线，也有原始信号与包络线的图像。(Algorithm using hilbert envelope signal extraction, both single envelope, there are images of the original signal and the envelope.)