erjiechanhanqiuchaotiao

documents about the voltage source converter

传统的决策树能较好地解决分类问题，但当类的个数增多时，所产生的单一决策树就会变得复杂，同时概括能力降低。 该文采用基于层次分解的方法通过产生多层决策树来处理多类问题。 与传统的单一决策树比较， 基于层次分解的决策树在处理多类问题时有许多的优势。(induction learning,decision tree,id3 ,hiberarchy decomposition)

模糊c-均值聚类算法通过优化目标函数得到每个样本点对所有类中心的隶属度，从而决定样本点的类属以达到自动对样本数据进行分类的目的，一般用于故障识别与分类。(Fuzzy c- mean clustering algorithm obtains the membership degree of every sample point to all class centers by optimizing the objective function, and determines the classification of the sample points to achieve automatic classification of sample data. It is generally used for fault recognition and classification.)

EKF求解GPS粗码。实时性高，精度高。主要为导航定位设计(EKF crude for GPS code. Real-time high and high accuracy. Mainly for navigation design)

该程序实现的事BPSK信号在两种信道下的仿真，分别是瑞利信道和高斯信道下的仿真，并对结果进行分析(The program implements thing BPSK signal two channel simulation, namely Rayleigh channel and Gaussian channel simulation, and the results were analyzed)

Circuit Analysis I with MATLAB Computing and Simulink - SimPowerSystems Modeling Mar 2009

this file contains some m-files about calculating the fractional fourier transform

sliding mode:In this project, a sliding mode controller is designed to a linear plant with non-linear dis- turbances. The performance of the designed controller is then veried via simulation using MATLAB and Simulink. Then, the sign function in the designed controller will be replaced by a sat function, and the performance of the new controller will be investigated. Finally, some conclusion remarks will be made according to the simulation results.

a good way to display Color image histogram. the result image is a 3D image. Very intuitive!

在研究了超高速OFDM系统传输模型的基础上，对OFDM系统的传输信号结构进行了分析，结合传统的多普勒频移算法，用OFDM信号循环前缀所包含的相对频偏信息设计了实时性较好的多普勒频移估计方法，并分析了多径效应对于循环前缀数据的“污染”效应，对该算法进行了优化，提高了算法的频移估计性能，并对该算法进行了性能验证。(Based on the study ultra-high-speed transmission of OFDM system model, the OFDM signal structure for the transmission system is analyzed, combined with traditional Doppler shift method, the relative deviation OFDM signal with cyclic prefix information contained in the real-time design Doppler shift better estimation methods, and analyzes the " pollution" effect of multipath effects for cyclic prefix data, the algorithm has been optimized to improve the frequency estimation algorithm performance and the performance of the algorithm verification.)