realise

实现快速傅里叶变换，自编函数FFT.而不需使用matlab自带的FFT函数(it can realize the fast fuleir tansform)

说明：  matlaby源程序 关于OFDM的系统性能分析 (matlaby source on the OFDM system performance analysis)

是信号处理的基础，小波包分析提取振动信号中的特征频率，用平面波展开法计算二维声子晶体带隙。( Is the basis of the signal processing, Wavelet packet analysis to extract vibration signal characteristic frequency, Computation Method D phononic bandgap plane wave.)

介绍matlab入门教材，包含遗传工具箱的使用，常见的算法函数的使用说明等(Introduction matlab entry materials, including the use of genetic toolbox, common algorithmic functions to the use of descriptions)

linear conjugate gradient

说明：  MathCAD是美国Mathsoft公司推出的一个交互式的数学软件。该软件定位于向广大教师、学生、工程人员提供一个兼备文字处理、数学和图形能力的集成工作环境，使他们能方便地准备教案、完成作业和准备科学分析报告。在输入一个数学公式、方程组、矩阵之后，计算机能直接给出结果，而无须去考虑中间计算过程。在加入软件包自带的Maple插件后能直接支持符号运算。你可以在计算机上输入数学公式、符号和等式等，很容易地算出代数、积分、三角以及很多科技领域中的复杂表达式的值，并可显示数学表格和图形,通过对图形结果的分析，使我们对问题的理解更加形象。 在实际应用中，MathCAD好比是一个功能强大的计算器，它没有很复杂的规则；同时它也可以和Word等字处理软件很好地配合使用，所以也可以把它当作一个出色的全屏幕数学公式编辑器来使用。 Mathcad的用户主要针对具备应用数学知识但并不要求具有较多的计算机知识的用户，如工程研究人员、学生等。 (MathCAD is a Mathsoft Launches interactive mathematical software. The software is targeted to the vast numbers of teachers, students, engineers to provide a mix of word-processing, mathematics and graphics capabilities of the integrated working environment, so that they can make it easier to prepare lesson plans, homework and prepare for scientific analysis. In the importation of a mathematical formula, equations, matrices, the computer can directly give the result without the need to consider the middle of the calculation process. Before joining the Maple software package comes with plug-ins can directly support the operation symbol. You can enter a computer mathematical formula, such as symbols and equations, it is easy to calculate the algebra, Integral, Triangle, and many of the complex field of science and technology in the value of expression, and mathematical tables and graphics show through an analysis of the results of graphics so that our understanding of the issues more imag)

In the previous chapters we have encountered a number of ways to process digital images, to recognize objects therein and to

BPA学习的简单介绍资料，涵盖了一些读取数据的基本操作(Brief information on BPA study, covering some of the basic operation of reading data)

一个应用psk调制的通信系统matlab仿真，应用matlab中的图形操作界面simulink，psk是现在应用最广的调制方式，有很大的参考价值(An application psk modulation matlab communication system simulation, application of the graphical interface matlab simulink, psk is now the most widely used modulation, have great reference value)

This matlab simulation model explains operation of openloop Buckboost converter.