erzhihua

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 )

说明：   1、 设有一个起始地址为FRIST + 1的数据块，存放在内部RAM， 数据块长度在FRIST单元且不为0，要求统计该数据块中值为0的个数， 并将它们分别存放在FRIST - 1单元单元，试编写出相应程序。(1, with a starting address FRIST+ 1 block of data stored in internal RAM, the data block length of 0 in the FRIST unit and not to require statistical data block 0 in the number of them were stored In FRIST- 1 unit cell, try to write the corresponding program.)

遗传算法解决5种多旅行商问题（mtsp）的matlab程序 分别为以下5中情况： 1.从不同起点出发回到起点（固定旅行商数量） 2.从不同起点出发回到起点（旅行商数量根据计算可变） 3.从同一起点出发回到起点 4.从同一起点出发不会到起点 5.从同一起点出发回到同一终点（与起点不同）(5 kinds of genetic algorithms to solve multiple traveling salesman problem (mtsp) matlab program 5, respectively, the following situations: 1. Back to the starting point a different starting point (TSP fixed amount) 2. Back to the starting point a different starting point (TSP amount calculated variable) 3. Starting the same starting point back to the beginning 4. Starting the same starting point to the starting point is not 5. Starting the same starting point back to the same end point (with different starting points))

matlab的数学手册，包含很多有用的数学函数可以调用！(matlab mathematical manual, containing many useful mathematical functions can be called!)

通过MATLAB来计算环形天线的辐射阻抗，远场方向性图，还有极坐标方向图(By MATLAB to calculate the radiation resistance of loop antennas, far-field directivity pattern, as well as polar pattern )

对于线性系统，输入输出在某频率点为正弦，利用本程序可以得到改频率点的幅值比和相位差。data文件为两组数据，通过matlab读取xls文件，可以用来验证本程序。(For linear systems, input and output sine wave at a frequency point, the use of this program can change the frequency by the amplitude ratio and phase difference. data files for the two sets of data, read by matlab xls files, can be used to test the program.)

里面有对img格式文件的读取方式，还有对图像进行低通和高通滤波的方法。(There is on img file format, and read the image low-pass and high-pass filter method.)

一个很好用得基于MATLAB的偏最小二乘回归得程序。(A good use of the MATLAB based on a partial least-squares regression procedures.)

说明：  MATLAB 编写的用matlab 来实现的pde图像增强方法，如果不对的地方，请各位指出。(This is an enhance image example to use pde ways,if there is some problems ,please tell me )

This is matlab file.this is about frequency hoping spread spectrum.. this matlab file describes the spread spectrum technique by using FHSS..