GraphTheoryAlgorithmMATLAB

编写一个含QAM传输的发送和接收模块 1)分别采用复基带仿真和实带通仿真两种形式 a) 实带通仿真时, 载波频率为符号率的4倍 b)发端采用滚降系数0.5的根号升余弦滤波器 2)画出Eb/N0=15dB时的接收波形(收滤波前),取100个采样 3)画出发端输出的眼图和收端过匹配滤波后的眼图(画眼图时不加噪声) 统计误符号率和误比特率与Eb/N0的关系,画出曲线, 与理论计算的曲线相对比 (Prepare to send of one with QAM transmission and receiver module 1), respectively, the complex baseband simulation and the real band-pass simulation in two forms a) the real band-pass simulation, the carrier frequency used for the symbol rate of 4 times b) the originator roll-off factor of 0.5 root raised cosine filter, 2) draw Eb/N0 = 15dB when the received waveform (closing filter), take 100 samples) to draw the originator of the output eye diagram and income side of the eye diagram after the matched filter ( draw the eye diagram without noise) statistics symbol error rate and bit error rate and Eb/N0, draw a curve calculated with the theoretical curve compared)

图像置乱加密。 主要思想：从两幅图像中选取信息，然后置乱成一幅图像。(Image scrambling encryption. The main idea: to select information from two images, and then scrambling into an image.)

针对非圆信号DOA估计问题,提出了一种基于实值特征值分解 (Eigenvalue decomposition,EVD)的求根MUSIC算法.首先利用非圆信号为实值信号的特点,将阵列上的接收数据及其共轭用欧拉公式转换为实值正弦与 余弦数据,然后将正弦与余弦数据进行串联,从而扩展了数据维数.由于采用实值矩阵的EVD,因此在EVD阶段的运算量简化为复值EVD的1/4.根据 EVD后获得的信号与噪声子空间的特点,对噪声子空间和导向矩阵进行重构以便于可以使用求根MUSIC算法获取对DOA的估计.仿真实验验证了本文算法的 有效性(For the estimation of noncircular signals of DOA, proposes a decomposition value based on real valued features (Eigenvalue decomposition, EVD) the root MUSIC algorithm. Firstly, characteristics of non circular signals for real valued signals, the array data and its conjugate with the Euler formula into real value of sine and cosine and sine and cosine data. The data series, thus expanding the dimension of the data. Because of the use of real valued matrix computation in EVD, so the EVD stage was simplified as a complex valued EVD 1/4. according to the characteristics of signal and noise subspace is obtained after EVD, the noise subspace and orientation matrix reconstruction in order to facilitate the use of DOA can obtain the estimated root MUSIC the algorithm. The simulation results verify the effectiveness of the proposed algorithm)

处理光纤的偏振串音和直播导消光比的matlab语句，其中将直播导偏振串音换算为角度进行积分再换算回偏振串音(Processing fiber polarization crosstalk and live large extinction ratio matlab statement, which will be broadcast live guide polarization crosstalk in terms of angle points and then converted back to the polarization crosstalk)

说明：  贪吃蛇MATLAB m文件 snake.m

Objective Fidelity Criteria(Objective Criteria)

小波分解语音增强中使用的分帧函数定义，使用时需另外建立文件定义(Wavelet decomposition is used in speech enhancement of framing function definitions, when used to create additional file definition )

里面包含有几个由MP150采集到的ECG、PPG和心率数据，还有一个能显示ECG和PPG信号波形以及频谱的matlab程序，它还能显示经过五点平滑滤波后的ECG和PPG的波形，程序中有注释。(Which contains several by the MP150 collected ECG, PPG and heart rate data, and one can show ECG and PPG signal waveform and spectrum matlab program, it can also display after a five-point smoothing filter after the ECG and PPG waveforms program in the Notes.)

Copula函数描述的是变量间的相关性，实际上是一类将联合分布函数与它们各自的边缘分布函数连接在一起的函数，因此也有人将它称为连接函数。本程序已调试，可以运行。(Copula function describes the correlation between variables, in fact, is a class of joint distribution functions and their respective edge distribution functions connected together, so it is also called the connection function. This procedure has been debugging, you can run.)

fft calculation of any input signal