nnt_intro

完整的OFDM自适应资源分配仿真程序，OFDM.m为主程序，修改发送和接受天线数量可实现MIMO OFDM仿真。(Complete OFDM Adaptive resource allocation simulation program, OFDM.m the main program, modify the number of transmit and receive antennas to achieve MIMO OFDM simulation.)

CR [1] is a promising solution to the problem of spectrum scarcity in wireless communications. The basic idea of CR is to allow secondary (unlicensed) users (SUs) to opportunistically utilize the spectrum of PUs (licensed), provided that the SU transmission do not harmfully affect the PUs. In this paper, we focus on the underlay CR approach, where the SUs access the spectrum occupied by the PUs, given that the interference they cause to the PUs is less than a certain threshold such that the Quality-of-Service (QoS) of the PUs can be ensured

说明：  图像配准程序，matlab编写,本人已验证过的好使的程序(images resgister)

DSP理论分析以及MATLAB详细程序实例 非常不错(DSP theory analysis and MATLAB examples of detailed procedures)

关于matlab的编程，主要是plot绘图方面的，请查收！(Matlab programming on the main plot mapping, please check!)

说明：  实现伪彩色增强，包括两种不同的算法。一种是线性变化传递函数，一种是非线性变化传递函数。(Achieve pseudo-color enhancement, including the two different algorithms. One is the linear transfer function, a nonlinear transfer function changes.)

电网络matlab编程，对复杂电路用程序进行编程计算。(Electricity network matlab programming and application programming calculation complex circuit)

Script for computing the SNR improvement in Rayleigh fading channel with selection diversity

小波包分析提取振动信号中的特征频率，含噪脉冲信号进行相关检测,二维声子晶体FDTD方法计算禁带宽度的例子。( Wavelet packet analysis to extract vibration signal characteristic frequency, Noisy pulse correlation detection signal, Dimensional phononic crystals FDTD method calculation examples band gap.)

Kriging代理模型适用于设计变量和试验样本较多的数据，建立设计变量与数据结果之间的数据模型，可用作进一步的优化设计(Kriging model applies to multiple design variables and large samples , can be used for further optimizational design)