analysis

Extended Kalman Filter for nonlinear dynamic systems

RHis mfiles is for optimlal conr=trol ddassdddd

说明：  专家pid控制仿真程序，可以共同学习！希望大家多多支持！(Expert pid control simulation program)

说明：  通过时域转换为频域，在频域中截取低频部分，去掉高频部分将结果再转换到时域以实现低通滤波的功能。(Through the time domain is converted to frequency domain, in the frequency domain low-frequency part of the interception, to remove high-frequency part of the results and then switch to the time domain in order to achieve low-pass filter function.)

matlab基础知识PPT，非常受用，适合初学者，上手容易(Matlab basic knowledge PPT, is very useful, is suitable for beginners, easy to get)

simulation of a wave reflection

计算一个序列的AR模型系数的前3个系数值,非常好用(Calculating a sequence of former three coefficients AR model coefficients, very handy)

提出了一种多迸制频移键控(M娲K)信号调制分类及解调方法，选取截获接收机输出的MFSK信 号的时频脊线作为分类特征，利用无监督聚类算法求取最佳聚类数M．利用时频脊线的Ham：小波变换 估计码元宽度，并且利用对应最佳聚类数的聚类中心确定抽判门限，通过对时频脊线抽样判决，实现了 MFSK信号的解调．理论分析和对实际信号的处理结果证明了此算法的可行性．(new algorithm is proposed for elassillcation and demodulation of MFSK signals．The ridge of time— frequency representation of MFSK signals is analyzed．Modulation elassi_fieation is realized by using the unsupervised clustering algorithm to determine the optimal nulnllt2r of clusters．In order to demodulate MFSK signals，the Haar wavelet transform is used to estimate the code—width and the centers of optimal clusters are used to determine thresholds．Theoretical analysis and practical signal processing results justify the robusticity and the efficiency of the new classification and demodulation Mgorithm．)

车队跟车模型，100辆车的首尾相接车队模型，用于研究城市路况跟车，节省整体交通效率的问题(The team follows the model of the car, and the fleet model of the 100 vehicles is used to study the traffic condition of the city and save the overall traffic efficiency.)

bandwidth management with dffserv using opnet modeler 8