OFDM_basic

嵌入同步信号以确定水印的嵌入位置，同时还可以抵抗各种时间轴上的同步攻击(Embedded sync signal to determine the location of the embedded watermark, but also resistant to a variety of simultaneous attacks timeline)

an example of how bw can be removed from ecg.

说明：  文件中是用于matlab画smith圆图程序包(Document is used to circle diagram smith painting matlab package)

基于matlab的指纹识别处理程序，仅供参考(Matlab-based fingerprint recognition processing procedures, reference)

matlab源码，利用遗传算法求解30个城市的tsp问题(matlab source code, the use of genetic algorithm to solve 30 problems tsp city)

有关matlab的遗传算法工具箱，里面含有若干实例和程序代码，是由英国大学研发的(Matlab genetic algorithm toolbox, which contains a number of examples and code, developed by the University of British)

数据简化，用于网格划分之后，为了计算速度，删掉一些平缓变化的数据(Data reduction for meshing and in order to calculate the speed, delete the data of some gentle changes in)

通过计算和作图，比较4PSK和QPSK这两种不同的编码方式之间的优略，说明发射信号一个是三值的一个是二值的(By calculating and plotting, preferably QPSK, and compare these two 4PSK encoding between different strategies, a description of the transmission signal is a ternary value is two)

SVPWM是近年发展的一种比较新颖的控制方法，是由三相功率逆变器的六个功率开关元件组成的特定开关模式产生的脉宽调制波，能够使输出电流波形尽可能接近于理想的正弦波形。空间电压矢量PWM与传统的正弦PWM不同，它是从三相输出电压的整体效果出发，着眼于如何使电机获得理想圆形磁链轨迹。SVPWM技术与SPWM相比较，绕组电流波形的谐波成分小，使得电机转矩脉动降低，旋转磁场更逼近圆形，而且使直流母线电压的利用率有了很大提高，且更易于实现数字化。(SVPWM is a novel control method developed in recent years. It is a pulse width modulation wave generated by a specific switching mode consisting of six power switching elements of three-phase power inverters, which can make the output current waveform as close as possible to the ideal sinusoidal waveform. Space voltage vector PWM is different from traditional sinusoidal PWM. It is based on the overall effect of three-phase output voltage, focusing on how to obtain the ideal circular flux trajectory of the motor. Compared with SPWM, the harmonic component of winding current waveform is smaller, which reduces the torque ripple of motor, makes the rotating magnetic field more close to the circle, and improves the utilization ratio of DC bus voltage greatly, and makes it easier to realize digitization.)

采用加权网络中节点强度和权重都是幂率分布的模型，双向PCS控制仿真，能量熵的计算，重要参数的提取，基于人工神经网络的常用数字信号调制，应用小区域方差对比，程序简单。( Using weighted model nodes in the network strength and weight are power law distribution, Two-way PCS control simulation, Energy entropy calculation, Extract important parameters, The commonly used digital signal modulation based on artificial neural network, Application of small area variance comparison, simple procedures.)