pca_kmeans

优秀论文及配套源码。首先阐述了负荷预测的应用研究现状，概括了负荷预测的特点及其影响因素，归纳了短期负荷预测的常用方法，并分析了各种方法的优劣；接着介绍了作为支持向量机（SVM）理论基础的统计学习理论和SVM的原理，推导了SVM回归模型；本文采用最小二乘支持向量机（LSSVM）模型，根据浙江台州某地区的历史负荷数据和气象数据，分析影响预测的各种因素，总结了负荷变化的规律性，对历史负荷数据中的“异常数据”进行修正，对负荷预测中要考虑的相关因素进行了归一化处理。LSSVM中的两个参数对模型有很大影响，而目前依然是基于经验的办法解决。对此，本文采用粒子群优化算法对模型参数进行寻优，以测试集误差作为判决依据，实现模型参数的优化选择，使得预测精度有所提高。实际算例表明，本文的预测方法收敛性好、有较高的预测精度和较快的训练速度。(first expounds the recent application research of load forecasting, summarized the characteristics of load forecasting and influencing factors, summed up common methods of short-term load forecasting, and analyzed the advantages and disadvantages of each method then introduced statistical learning theory and the principle of SVM as the basis of support vector machine (SVM ) theory, SVM regression model is derived this paper adopted least squares support vector machine (LSSVM) model, according to the historical load data and meteorological data of a certain area of Zhejiang Taizhou, Analysised the various factors affecting the forecast, summed up the regularity of load change , amended "outliers" in the historical load data,the load forecasting factors to be considered were normalized. The two parameters of LSSVM have a significant impact on the model, but it is still soluted based on the experience currently. So, this paper adopted particle swarm optimization algorithm to optimized )

matlab程序设计与应用，主要是简单的偏微分方程及画图讲解(matlab program design and application, mainly simple partial differential equations and drawing on)

说明：  MatLab在工程数学方面的应用,工程数学计算.(MatLab in the application of engineering mathematics, engineering, mathematical calculations.)

说明：  模型预测控制matlab运行代码，可实现模型预测控制。(Model predictive control matlab running code)

说明：  异步电机启动模型，仿真结果表明该模型鲁棒性强，调节时间短。(asymotor_stator.mdl)

说明：  samlple,HJ dtaaHJ反演气溶胶源(HJhjhj samlple,HJ dtaa samlple,HJ dtaa)

BOC 信号 生成方法 自相关函数 频率功率谱密度 BOC 信号 生成方法 自相关函数 频率功率谱密度(BOC signal, the autocorrelation function, the frequency spectrum analysis.)

读取HDF格式数据的小程序，matlab语言编写(Read HDF data format small program, matlab language)

This file find the best coordination for a data set to reduce its dimension. Large data set,Dimension Reduction.

这是一个实现双音多频(DTMF)通信系统的编程实例，对通信系统各个环节进行了仿真(This is a dual tone multi-frequency (DTMF) communication systems programming examples for all aspects of the communication system simulation)