dingweichengxu

关于2FSK在高斯和瑞利信道的传输，以及OFDM系统的仿真模型，还有QPSK的Simulink仿真。(About 2FSK in Gaussian and Rayleigh channel transmission, as well as the OFDM system simulation model, as well as QPSK the Simulink simulation.)

说明：  若锗中含有一定数量的杂质元素Sb，试根据要求分析杂质浓度与电离度以及电离温度之间的关系： （1）当Sb浓度分别为 和 时，计算杂质99％，90％和50％电离时的温度各为多少？ （2）根据一定杂质类型和杂质浓度，画出电离度和温度的关系图线，并确定半导体处于强电离区（电离度>90％）的温度范围。 设计要求：（1）具有友好输入输出界面； （2）调整输入数据，得出相应结果，并进行分析。 (If the germanium containing a certain number of impurity elements Sb, test analysis in accordance with the requirements of impurity concentration and ionization degree, as well as the relationship between the ionization temperature: (1) When the Sb concentration and time were calculated 99 percent of impurities, 90 and 50 ionization When the temperature of each number? (2) according to certain types of impurities and impurity concentration, ionization degree and temperature to draw the relationship between the graph lines, and to determine the semiconductor in a strong ionization zone (ionization degree)

说明：  在地球科学中，误差分析非常实用，这里提供测地学常用的误差分析代码(Error Ellipses in Geodesy)

关联向量机，很好的工具箱，有用于分类和回归的例子(Relevance vector machine, a good toolbox, there are examples for classification and regression)

k-means算法对irisdata数据集进行聚类(The k-means algorithm clustering the irisdata datasets)

该目录包含了matlab的遗传算法优化工具箱 。(This directory contains the Genetic Algorithm Optimization Toolbox for Matlab.)

混沌现象的证明方法多种多样，其中分岔图就是一中很好的方法(Proof of chaos in various ways, including the bifurcation diagram is a good way)

进行潮汐调和分析，计算各分潮的调和常数，判断该站点的潮汐类型，并预报未来潮高。(Through tidal harmonic analysis, the harmonic constants of each constituent tide are calculated, the tidal types of the station are judged, and the future tidal heights are forecasted. Conducting tidal harmonic analysis)

MATLAB下通过impulse invariant transformation方法设计数字滤波器，包含低通和带通滤波器代码。(Using MATLAB m-file to design LP and BP digital filter by impulse invariant transformation method.)

说明：  This document explains how to read the RADARSAT data CD provided with the book "Digital Processing of Synthetic Aperture Data" by Ian Cumming and Frank Wong, Artech House, 2005. On this web site, programs are provided in MATLAB to read the data and parameters from the CD. The structure of the programs is outlined in Figure 1. There are two main programs and one function that are used to extract