qpsk

a gain calculator about semiconductor optical amplifier gain and ode method

自己写的一个程序，利用matlab的interp3实现三维数据插值(it s a program using matlab to achieve a three-dimensional data interpolation of interp3)

analogique simulation matlab de pll

matlab radial based network using image processing algorithms

此代码很完善，能很好识别人脸。很有用的识别程序(This code is perfect, can well identify the human face. Useful in identification procedures)

说明：  此源码进行图片灰度值的处理，使图片更清晰，或者让其变成纯黑纯白(this code does the image gray level enhancement)

摘 要 采用有限元和球函数相结合的方法,建立水下复杂壳体)))两端带半球壳的加肋弹性圆柱壳的振动!耦 合振动和声辐射方程,运用方程分析法,导出水下复杂壳体的振动!耦合振动和声辐射的相似关系,根据建立的相似关系 实现对壳体的振动响应和声辐射的预报"采用大型有限元软件对具有相似关系的模型和原型的振动响应和声 场进行分析,算例表明,方法切实可行并且为预报水下大型复杂结构体的振动响应和耦合声场提供了一种简洁!实用的 研究方法"(The finite element and ball method of combining functions, the establishment of underwater complex shell))) ends with a hemispherical shell stiffened elastic cylindrical shell vibration! Coupling )

用MATLAB SIMULINK实现 高斯信道基带传输系统测试模型-定时提取仿(Achieved using MATLAB SIMULINK Gaussian channel baseband transmission system test model- timing extraction imitation)

在Matlab中设计GUI，按下相应的按钮实现方波信号和指数信号的卷积功能，并保存实验结果。(Design of GUI in Matlab convolution function, press the corresponding button to achieve a square wave signal and exponential signal, and save the experimental results.)

Phase-shift keying (PSK) is a modulation process whereby the input signal, a binary PCM waveform, shifts the phase of the output waveform to one of a fixed number of states. The demodulation process can be divided into three major subsections, as shown by Figure 4. First, since the incoming waveform is suppressed carrier in nature, coherent detection is required. The methods by which a phase-coherent carrier is derived from the incoming signal are termed, carrier recovery, and will be covered first.