A-Study-on-Indoor-Positioning-System-Using-ID-Mod

这是一个电力系统谐波检测的MATLAB仿真模型，采用的是基于瞬时无功功率理论的ip-iq法，效果很好(This is a power system harmonic detection MATLAB simulation model, based on the instantaneous reactive power theory ip-iq method, the effect is very good)

Fs = 100000 t = 0:1/Fs:.00296 x = 1-cos(4*pi*t) cos(2*pi*t*200) h = spectrum.welch Instantiate a welch object. psd(h,x, Fs ,Fs) Plot the one-sided PSD

APES谱估计方法的matlab源代码，已经通过验证(APES spectral estimation methods matlab source code has been validated)

针对无线射频识别(radio frequency identification，RFID)系统的多标签碰撞问题，在分析RFID标签编码规则的基础上，提出根据标签编码规则进行标签分组和标签预淘汰的方法，在读写器识别的初始阶段根据特定的规则淘汰部分标签，从而减少系统工量，提高系统工作效率.实例证明：在不增加标签结构复杂度的基础上，充分利用已有的有效信息能够有效减少阅读器的查询次数和系统的总通信量．(For radio frequency identification (radio frequency identification, RFID) system is a multi-tag collision problem, based on the analysis of the RFID tag encoding rules based on the proposed label grouping and labeling pre-elimination method according to the label encoding rules identified in the initial reader phase-out of the label according to specific rules, thus reducing the amount of system engineering, to improve system efficiency examples demonstrate: the label without increasing the complexity of the structure on the basis of full and effective use of existing information can be effective in reducing the number of queries and reader total traffic of the system.)

经济学的数值方法 非线性优化。涉及Broyden s Method Powell s Hybrid Method,定价问题(Broyden s Method Powell s Hybrid Method，pricing set)

研究rayleigh衰落，根据《无线通信原理与应用》一书(Study of Rayleigh fading, according to Principle and Application of wireless communications, a book)

传统的完整的雷达成像RD算法，其中具体到了距离向、方位向德细节处理(the RD algorithm of traditional radar imaging,many detail are described in it,so it is very usefull for someone who is the first time to learn radar imaging )

（压缩包里一共有5个代码） pca+lda+粗糙集+模糊神经网络 saveORLimage.m将ORL人脸库分为测试集ptest和训练集pstudy存为imagedata.mat 1.savelda.m将人脸库先进行pca降维，再用lda进行特征提取，得到新的测试集ldatest和训练集ldastudy存为imageldadata.mat 2.对ldastudy进行离散化(discretimage.m)，得到离散化矩阵disdata,存入到imagedisdata.mat 3.将disdata组成决策表(savers.m)，通过对disdata的条件属性进行约简，得到其一个约简，组成新的测试集rstest和训练集rsstudy存为imagersdata.mat 4.对rsstudy进行模糊神经网络训练(savecul.m)，对模糊神经网络的参数进行调整学习将其存入culdata.mat 5.用runfnn.m对rstest进行测试得到其识别率 savem.m和cm.m是用最小距离分类器对训练集和测试集进行分类.(pca+ lda+ Rough Set+ fuzzy neural network saveORLimage.m will ORL face database is divided into test set and training set ptest for pstudy keep imagedata.mat Treasury will face 1.savelda.m first dimensionality reduction pca, lda used feature extraction, a new test set and training set ldatest for ldastudy keep imageldadata.mat 2. Ldastudy carried out on the discretization (discretimage.m), to be discrete matrix of disdata, deposited to imagedisdata.mat 3. Disdata the composition of the decision table (savers.m), the conditions on the attributes disdata about Jane, has been one of its reduction to form the new test set and training set rstest for rsstudy keep imagersdata.mat 4. Rsstudy training fuzzy neural network (savecul.m), on the parameters of fuzzy neural network to learn to adjust their deposit culdata.mat 5. Rstest used to test for runfnn.m by its recognition rate cm.m is savem.m and minimum distance classifier on the training set and test set classificati)

上下游节制闸同时关闭时，下游闸门前和渠道中最大壅水位计算(Upstream and downstream at the same time controlling gate closed, the downstream gate and channel pre-calculation of the largest stop up the water level)

说明：  准椭圆函数交叉耦合滤波器耦合系数的提取程序。利用matlab遗传算法和solvopt算法工具包。不懂使用方法可以加我qq13319810(Cross-coupled quasi-elliptic function filter coupling coefficient of extraction procedures. The use of genetic algorithms and matlab toolkit solvopt algorithm)