MIMO-Array-Antenna

生成PN序列（伪随机噪声序列），阶数包括2阶，3阶，4阶，5阶，6阶，7阶，8阶。并在前面补0后形成相应的2的幂次长的序列。(Generated PN sequences (pseudo-random noise sequence), including the orders of 2 order, 3 order, 4 order, 5 order, 6 order, 7 order, 8 order. And fill in front of 0 after the formation of the corresponding power of 2-long sequence.)

time scale modification SOLA

The Matlab code FDE12 implements the Predictor-Corrector method of Adams-Bashforth-Moulton for the numerical solution of a non-linear fractional differential equation (FDE) (download the Matlab code FDE12).

实现雷达信号线性调频的相关处理，对雷达信号的细微特增进行分析(Chirp radar signal processing, radar signal subtle increase in special analysis)

清华大学张旭东老师现代信号处理第二次matlab习题(The second matlab exercise in modern signal processing by Xudong Zhang, Tsinghua univ.)

ROC曲线~在信号检测理论中,接收者操作特征(receiver operating characteristic),或者叫ROC曲线是一种对于灵敏度进行描述的功能图像.ROC曲线可以通过描述真阳性率(TPR)和假阳性率(FPR)来实现.由于是通过比较两个操作特征(TPR和FPR)作为标准,ROC曲线也叫做相关操作特征曲线(ROC curve ~ in signal detection theory, the receiver operating characteristics (receiver operating characteristic), or called the ROC curve is a function that describes the sensitivity of the image. ROC curve can describe the true positive rate (TPR) and false positive rate ( FPR) to achieve. because it is by comparing the two operating characteristics (TPR and FPR) as a standard, ROC curve is also called the relevant operating characteristic curve)

用随机信号作为SAR的发射信号！体现在距离向的分辨率具有明显优势！(SAR emission signal as a random signal. Reflected in the distance to the resolution has obvious advantages.)

说明：  利用NSGAII算法进行对复杂网络的社区检测(community detection in complex network)

给定初始值，产生费根鲍姆迭代轨迹，logistics映射，周期点等程序(Given initial value, resulting in iterative trajectory Feigenbaum, logistics map, periodic points and other procedures)

只要认真看， 一天就可以掌握DFT的原理，大家看看哦(As long as a day, you can master the principle of the DFT, we look at)