数值方法和MATLAB实现与应用

说明：  研究在matlab环境下，fft的实现以及用matlab产生各种滤波器包括用双线性变换法以及脉冲响应不变法实现。(Research in the matlab environment, fft implementation and produce a variety of filters using matlab including the use of bilinear transform and impulse response method to achieve the same.)

本文通过matlab仿真，比较线性调频信号的FFT和STFT，并研究了信号中混入各种噪声后如何处理。(In this paper, matlab simulation, comparison of the FFT and linear FM signal STFT, and studied all kinds of noise signals mixed How to handle.)

This Matlab code is written by me and its purpose is for car plate detection by using labeling and morphological operation. Its very fast and simple. for working on specific database it needs to change structural elements of morphological operation and also the area of white pixels in labeling part. for any information you can contact with me through my email.

用matlab的核函数对钓鱼岛实现分类（模式识别作业）(Kernel function using matlab realize the Diaoyu Islands classification (pattern recognition operations))

amplitude modulation

史密斯图(Smith chart)是一款用于电机与电子工程学的图表，主要用于传输线的阻抗匹配上。在复平面上采用双线性变换。实部 r=常数和虚部 x=常数，两族正交直线变化为正交圆并与反射系数|G|=常数和虚部x=常数套用而成。本文档通过MATLAB来编写程序，绘制一个完整的SMITH圆图(Smith figure (Smith chart) is a for electrical and electronic engineering chart, mainly for the transmission line on the impedance matching in the plane bilinear transformation real part r = constant and imaginary part x = constant, two RACES straight for orthogonal round orthogonal changes and and reflection coefficient | G | = constant and imaginary part x = constant apply mechanically and into this document to write the program through MATLAB, draw a complete Smith circle diagram )

克里金插值工具箱函数 用于计算克里金插值计算问题(Kriging toolbox function is used to calculate the kriging interpolation calculation)

S变换的小程序包，简单实用，特别适合初学者，一看程序描述就懂。(A quite easy S tranform matlab code. And it is easy to learn it.)

研究生时的现代信号处理的作业，数据模型归一化，模态振动，鲁棒性好，性能优越，数学方法是部分子空间法，使用大量的有限元法求解偏微分方程，搭建OFDM通信系统的框架。(Modern signal processing jobs when the graduate, Normalized data model, modal vibration, Robustness, superior performance, Mathematics is part of the subspace, Using a large number of finite element method to solve partial differential equations, Build a framework OFDM communication system.)

基于随机共振系统对FSK，PSK以及QAM信号的检测与性能分析(Detection and Performance Analysis of FSK, PSK and QAM Signals Based on Random Resonance System)