nnn1

frequency shift keying modulation

本文使用三维FDTD算法实现文献《Application of the three_Dimensional Method to the analysis if Planar Microtrip Circuits》IEEE trans. On MTT 1990 38(7)的一个矩形微带贴片天线的S11参数的计算。采用MATLAB编程完成数值计算，并与文中的结果进行了比较。(This three-dimensional FDTD algorithm using the document " Application of the three_Dimensional Method to the analysis if Planar Microtrip Circuits" IEEE trans. On MTT 1990 38 (7) of a rectangular microstrip patch antenna of the S11 parameter of the calculation. Complete the numerical calculation using MATLAB programming, and with the text of the results were compared.)

参数估计与假设检验案例分析与matlab实现，仿真运行，完整的材料(Parameter estimation and hypothesis testing case analysis and matlab implementation, simulation run)

希尔伯特黄变换理论及其应用探讨,基本原理，EMS算法(Hilbert-Huang Transform and Its Applications, basic principles, EMS algorithm)

利用MATLAB实现有限元分析中8节点平面结构单元的计算，程序中定义多个参变量及函数，具有极强的通用性(Using MATLAB to achieve 8-node finite element analysis of plane structural elements of the calculation, the program defined in the function of many variables and parameters, is highly versatile)

说明：  精通MATLAB优化计算算法，无约束的一维极值算法。共9个程序。(Proficient in MATLAB optimization calculation algorithm, non-binding one-dimensional extremum algorithm. A total of nine procedures.)

说明：  watterson信道模型，包含四种模型，有3径和4径两类(watterson channel model, including the four models, there are two types of 3 tracks and 4 tracks)

4psk的matalab仿真系统，对研究很有用途(Matalab the 4psk simulation system is the use of research)

说明：  该程序包为用MATLAB编写的一个基于小波变换降噪的软件，有很多值得借鉴的地方(The use of MATLAB package for the preparation of a noise reduction based on wavelet transform of the software, there are many places to learn)

MATLAB实现最小二乘法拟合，可以实现多维的(MATLAB least squares fitting, can realize muti —dimensions )