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it is about cognitive radio

菲涅尔衍射的S-FFt计算,输入一个图像的复振幅,模拟复振幅的傅里叶变换的衍射(Fresnel diffraction S-FFT calculation, enter the complex amplitude of the image, the the analog complex amplitude of the Fourier transform of the diffraction)

基于四边单元速度传热问题程序,入门程序，简单易懂，适合初学者对该方法编程的一个初步认识(Based on four sides of the unit rate of heat transfer procedures, entry procedures, easy to understand for beginners to the method of programming a preliminary understanding)

卷积码编译码的快速实现算法，非常适合初学者迅速上手(Fast convolution code encoding and decoding algorithm is very suitable for beginners to get started quickly)

小波分解轴承故障诊断代码，包括特征提取，用的数据是西储大学轴承数据(Wavelet decomposition bearing fault diagnosis code, including feature extraction, the data used is the West Park University bearing data)

说明：  都市供求信息网分为前、后台两部分设计，前台主要实现信息的显示、搜索与发布功能，其中信息的显示包括列表显示与详细内容显示，而列表显示，又分为首页信息列表显示、查看某类别下所有信息的列表显示和搜索结果列表显示；搜索功能主要包括定位搜索和模糊搜索。后台主要实现的功能为信息显示、信息审核、信息删除、付费设置与退出登录，其中的信息显示功能也分为列表显示与详细内容显示(Display search functions including search and fuzzy search positioning. Backstage main function information display, information auditing, information deleted, pay setting and log out, which is also divided into information display function displays detailed contents list display)

说明：  单相全桥逆变器simulink仿真，内含SPWM输出模块，可以通过设置调制比/基波频率/载波频率查看逆变器的响应效果。(Single-phase full-bridge inverter simulink simulation, including SPWM output module, can check the response of the inverter by setting the modulation ratio / fundamental frequency / carrier frequency.)

IEEE经典文章，CDMA PN序列差分捕获技术，文章内容详细，对学习和从事直接序列扩频同步捕获CDMA系统设计人员有很大帮助，推荐(New differentially coherent detectors for acquisition of direct sequence spread-spectrum signals are ntroduced. These detectors are alternatives to the noncoherent detectors that have been considered almost exclusively in the past. The proposed detectors are suitable for commercial code-division multiple-access(CDMA) systems which operate with a relatively large noise fl oor and provide a surprisingly large signal-to-noise ratio (SNR) improvement over the noncoherentdetectors of approximately 5 dB.)

说明：  等概率二进制的产生，重复码编码，ＴＨ编码，脉冲形成．(probability of such a binary have repeated coding, TH coding, pulse formation.)

《MATLAB程序设计教程》的源代码，非常全面哦！(" MATLAB programming tutorial" source code, very comprehensive Oh!)