Mechanical-Design-Analysis-AAD

matlab编写的对二值图像的数字水印添加与提取程序。压缩包中有示例图片。可以添加水印，结果肉眼不易分辨出变化，不影响使用。可加入信息长度达100个字节。提取时可验证是否被修改过，如修改不严重，可提取隐藏信息，如果修改过多，则只能确定是否有修改，而不知道隐藏的信息是什么(matlab prepared binary image of the digital watermark added and extraction procedures. Compression package has sample images. Can add watermarks, the results of the changes are not easily distinguishable from the naked eye, does not affect use. Can be added to the information length of 100 bytes. Verifiable extraction has been modified, such as modification is not serious, can extract hidden information, if too many modifications, you can only determine whether changes were needed, they do not know what information is hidden)

用窗函数法和等波纹最佳逼近法设计FIR滤波器，并对含噪信号进行处理(design FIR filter,and apply it in noised signal processing )

说明：  Matlab做的关于三角波，正弦波，方波的FFT算法，可以分析方波信号、三角波信号的频谱以及采样点数、采样频率对频谱分辨率的影响。(Matlab to do on the triangle wave, sine wave, square wave of the FFT algorithm, can be analyzed square-wave signal, triangular wave signal of the spectrum as well as the sampling points, the sampling frequency affect the resolution of the spectrum.)

实现QAm和2psk调制 和解调 产生星座图。适合初学者学习参考用来进一步深化课本知识的理解(QAM mode and demode BPSK mode and demode)

说明：  基于matlab的fsk调制的代码，可以实现仿真(it s fsk)

说明：  一阶微分算子 一阶微分算子常用的有 roberts 算子、sobel 算子和 prewitt 算子(First-order differential operators of first-order differential operator used the roberts operator, sobel operator and prewitt operator)

LMSE算法实现判断线性可分性和求分界向量(LMSE algorithm for linear separability judgment and seek demarcation vector)

噪声调相干扰信号的matlab仿真实现，其中包含成像的提取程序(sar jamming signal of noise moding phase)

这是BCSK Simulation for AWGN & Rayleigh Channels, 详细的算法说明见程序注释. (This is BCSK Simulation for AWGN )

Electric field plot of a cylindrical antenna, conformally mapped, in matlab(source code)