communications

The receiver performance is quantified by depicting the receiver operating char- acteristics (ROC) curves. This curves serve as a tool to and study the performance of a sensing scheme. ROC graphs are employed to show trade-of vs between detection probability and false alarm rates, (i.e. PD versus PFA), thus allowing the determination of an optimal threshold. To illustrate the performance of energy detectors, we generate complementary ROC curves (the average probability of miss detection $ P_{md} 1 - P_d$ versus the false alarm probability $P_f$ for different receiver structures and in different fading environments.Fig. 1 illustrates the complementary ROC curves for a single channel reception (no diversity) over AWGN channels. This figure depicts the complementary ROC curves for energy detectors.

DYNAMIC dynamites of SIMULATIO simulinga N MODEL OF A HYBRID POWER SYSTEM so that dynamics of hybrid solar and wind can be analyzed

FAce recognitionn using PCA method

说明：  三相逆变器SIMULINK仿真，可以用来完成相关仿真实验(Simulink simulation of three-phase inverter)

小波分析理论中的一些例程,摘出来方便大家参考.(wavelet analysis theory of some routines, pick out convenient reference.)

求传递函数的一般格式，通过该程序，我们基本上能写出求任意的传递函数的式子(The general format of the transfer function of demand。Through this program, we can write the formula basically seeking arbitrary transfer function)

说明：  整理的关于FFT的matlab程序，所用matlab版本为2016b(The matlab program of FFT is arranged. The version of MATLAB is 2016b.)

Low-pass filter design

LDPC Encoder and Parity check matrix file for Chinese Digital Tv transmission..

一种基于区域活动轮廓模型，通过引入局部的图像拟合能量来提取图像的局部信息，能够有效的额分割强度不均一的图片。较传统的水平集方法有更少的计算量(By introducing the local image fitting(LIFenergy to extract the local image information,our model is able to segment image with intensity inhomogeneities.)