modulation

this is new approach for fuel cell control.it is really helpfull.

一个按照时间抽取的基2快速傅里叶变换（基2FFT-DIT）。输入倒位序，输出自然顺序。(A time taken by the base 2 fast Fourier transform (base 2FFT-DIT). Enter the inversion sequence, the output of natural order.)

这个程序就是最基本的粒子群优化算法程序，用Matlab实现，非常简单。只有几十行代码。正所谓 一分钱一分货啊，优化效果不总是令人满意。(This procedure is the most basic particle swarm optimization procedures, using Matlab implementation, is very simple. Only a few dozen lines of code. One is the so-called sub-penny ah goods, and optimize the result is not always satisfactory.)

segmenting image whith matlab

说明：  龚纯主编的“matlab语言常用算法程序集”的第四章源代码(Gong pure edited matlab language commonly used algorithm for assembly, &quot the fourth chapter of source code)

several numerical method code

chomsky文法判断，0，1，2，3四种文法类型的判断(chomsky)

matlab学习必备，maltab仿真大全，国外经典之作(matlab learning essential, maltab simulation Guinness, foreign classic)

说明：  matlab仿真延迟相乘法估计调制信号符号速率(matlab simulation multiplication delayed modulation signal symbol rate is estimated)

FIR数字滤波器在工程上运用广泛．窗函数法设计FIR数字滤波器是典型的设计方法。目前。相关课程的教科书对窗函数法设计FIR 散字滤波器这部分内容讲解不够细致，学生掌握感到有难度。本文针对窗函数法设计FIR数字滤波器的相关问题．即数字滤波器与模拟样本 滤波器的关系、截断点如何取值和数字滤波器的线性相移特性，结合实例进行分析。并借助Matlab仿真软件对设计进行了分析和验证．(FIR digital filters widely used in engineering. Window method is a typical design FIR digital filter design methods. Present. Related courses textbooks window functions designed FIR filter scattered words to explain this part carefully enough, students are difficult to master. This window function method for the design of FIR digital filters related issues. Samples of the digital filter and analog filter between values and the cut-off points to the linear phase shift digital filter characteristics, with examples for analysis. And using Matlab simulation software design analysis and verification.)