OQPSK_Simu

Principle component analysis PCA

用MATLAB实现IIR滤波器的设计，希望能帮助一些学信号与系统的同学们。(IIR filters using MATLAB to achieve the design, hoping to learn signals and systems to help fellow students.)

MATLAB已成为多学科、多种工作平台的功能强大、界面友好、语言自然并且开放性强的大型应用软件，目前的最高版本是6.0版。本教程以6.0版为基础，从高等工科院校的数学课程出发，提供了使用MATLAB的实践性指导。本教程以教学的手段，系统详细地介绍了MATLAB在高等数学、数值分析、函数作图、线性代数、概率统计和优化理论中的应用，并配备了大量的例题，让读者能很快掌握MATLAB的运算技巧。 本教程按逻辑编排，自始至终用实例描述，既适用于初学者自学，也适用于高级MATLAB用户。可作为高等数学、数值分析、工程数学、数学建模、线性规划等课程的教学参考书，也可作为科技工作者学习和使用MATLAB的参考书，还可作为数学实验的教学用书，特别适合用作理工科大学生学习数学课程的教学辅导书。 本教程的光盘内容详尽、实例丰富：包含了MATLAB实例的源文件，函数/命令及注解，程序实例。(MATLAB has become a multi-disciplinary, multi-working platform powerful, user-friendly, language, natural and open and strong large-scale software applications, currently the highest version is 6.0. This tutorial with version 6.0 as the foundation, the mathematics curriculum in engineering colleges starting to provide a practical guide for using MATLAB. This tutorial with a medium of instruction, the system described in detail MATLAB in advanced mathematics, numerical analysis, function graphing, linear algebra, probability and statistics and optimization theory, application, and is equipped with a large number of Example, so that readers can quickly grasp the MATLAB computing skills. This tutorial logically arranged from beginning to end examples describing both self-study for beginners, but also to advanced MATLAB users. Can be used as advanced mathematics, numerical analysis, engineering, mathematics, mathematical modeling, linear programming courses teaching reference books, but )

各种周期信号的傅里叶变换，如门信号等，还有些就是常用的信号。(A variety of Fourier transform of periodic signals, such as the gate signals, some signal is commonly used.)

this matlab code about 64 point fft.

koch曲线，分型课程中经常用到的，很好(koch)

transformed sec2time in matlab

说明：  仿真FM系统的调制解调全过程，有相干解调，非相干解调，包括大小信噪比的分析，十分完整~包含程序以及仿真结果。都是自己完成的，还有写程序中的一些问题和心得，希望对大家有帮助(The whole process of simulation FM system modulation and demodulation, coherent demodulation, non-coherent demodulation analysis, including the size of the signal-to-noise ratio, very complete to contain the program as well as the simulation results. All their completion, as well as write programs in a number of issues and experiences, we hope to help)

本文件用于Copula函数的参数估计与拟合，基于Matlab程序(This document is used for Copula function parameter estimation and fitting, based on the Matlab program)

face detection in matlab. accuracy is about 99.3 . basic code of matlab need to execute in matlab