differential_code

水印方面 源代码 可以 研面究新手可以参考(shuiyin matlab)

强主动声纳信号干扰被动声探测的仿真分析.被动声探测是探测和跟踪水中噪声目标的重要手段,但强主动声纳信号的出现将对被动声探测产生很强的干扰作用,影响被动声纳对噪声目标的检测或跟踪。本文通过计算机仿真,分析被动声纳的积分时间、强主动声纳信号的强度、脉冲宽度和发射周期四个因素对强主动声纳信号干扰被动声探测程度的影响。(Simulation analysis of passive acoustic detection of a strong active sonar signal interference passive acoustic detection is an important means to detect and track water noise goals, but the emergence of strong active sonar signal will be passive acoustic detection generate strong interference effect, the impact of passive acoustic satisfied noise target detection or tracking. This paper through computer simulation, and analysis of the four factors of the integration time of the passive sonar, a strong active sonar signal intensity, pulse width, and launch cycle impact of passive acoustic detection of a strong active sonar signal interference.)

说明：  matlab利用遗传算法求解目标函数，包括适应度曲线(Matlab USES genetic algorithm to solve the objective function, including the fitness curve)

属于信息隐藏技术，图像图像处理的Arnold变换代码及其改进代码，输入图像输出图像，简单实用，欢迎下载~(Is information hiding, image, image processing and improve the code Arnold transform code, simple and practical, are welcome to download ~)

信号处理中参数最大似然估计的仿真程序设计(Maximum likelihood parameter estimation simulation)

matlab的上百个源代码，包括用matlab进行数值计算，矩阵运算，多维曲线的绘图，都有涉及，希望对大家有所帮助！(matlab hundreds of source code, including the numerical calculation using matlab, matrix operation, multi-dimensional curve drawing, are involved, we want to help!)

matlab 最优化处理的一些简单编程，以及附带若干个例子(Some simple matlab program optimization, and with some examples)

使用curvelet变换对一幅图像变换，显示其系数图，再选取阈值进行重构，显示重构的图像。(Curvelet transform using the transform of an image to show its coefficient map, and then select the remodeling threshold, indicating the image reconstruction.)

Set of files about subspace method and pca

传输矩阵法计算啁啾光栅反射谱 本节中给出传输矩阵法计算啁啾光栅反射谱和 时延的完整M at lab 程序实例, 本段代码在 M at lab513 和W indow s2000 环境中运行通过。运行结果如图8 所示。可以改变光栅长度、有效折射率、折射率调制深度、啁啾系数等参数来获得不同参数下光栅反射谱和时延曲线。如果打开“％ 切趾”行的屏蔽符“％ ”则可得到切趾后光栅反射谱和时延特性曲线, 此时计算所得的曲线将比图8 中所示的曲线平滑很多。(Transfer matrix method to calculate reflection spectrum of chirped grating is given in this section transfer matrix method to calculate chirped grating reflection spectrum and the delay of a complete example of M at lab procedures, the above code in M at lab513 and W indow s2000 environment to run through. The results shown in Figure 8. Can change the grating length, the effective refractive index, refractive index modulation depth and chirp coefficient parameters to obtain different parameters of grating reflection spectrum and the time delay curve. If you open Apodization line shielding Fu can be grating after apodization reflection spectrum and the delay characteristic curve, the curve at this time will be calculated as shown in Figure 8 a lot of curve smoothing.)