SCFDMA-simulation

摘要 该文主要考虑利用图像噪声再生技术来提取图像细节 其思想是利用被滤除的噪声信号进行回收再利用 通过对噪声信号和初步去噪信号进行小波变换 比较它们的小波系数 当噪声信号的小波系数达到一定的阈值时 将噪声信号的小波系数保留叠加至初步去噪信号的小波系数 然后利用传统的软阈值去噪的方法来进行图像的去噪 从而达到既能够去除噪声 又能保留图像细节的目的 实验证明 该方法较传统的方法在去噪和细节保持上有改进(Abstract In this paper, consider using images to extract the noise regeneration of its ideological image detail is the use of the noise signal was filtered to recycle through the noise signal and the initial wavelet transform de-noising signal comparison of their wavelet coefficients of the wavelet signal when the noise coefficient reaches a certain threshold will be the noise signal superimposed to the wavelet coefficients to retain the initial de-noising signal wavelet coefficients and then using the traditional soft-threshold denoising approach to image denoising in order to achieve the removal of noise can not only be able to retain The purpose of image detail that the methods of the experiment a more traditional approach to denoising and detail in there to keep improving)

通信中常用的PN序列产生器的源代码全部打包(Communications commonly used in PN sequence generator, the source code of all packaged)

matlab例子100个例子，内部代码，matlab例子100个例子(matlab examples 100 examples, the internal code, matlab examples 100 examples)

matlab 求解微分方程 ，This module Does FEM analysis of a field problem when the Governing differential equation(matlab to solve differential equations, This module Does FEM analysis of a field problem when the Governing differential equation)

说明：  自编粒子滤波算法程序，可解决非线性非高斯条件下的目标跟踪问题。(PF written by myself which provided solution of target tracking with non-linear and non-gauss environment.)

利用二维有限差分法对单脊波导TM模进行计算。通过调整网格数目观察计算结果的精度，可以设定出最优的网格数目，然后改变波导中脊的尺寸，观察最低两个TM模对应的截止频率的变化规律，最后给出对应的横截面电场、磁场分布图(The two-dimensional finite difference method to calculate the single-ridge waveguide TM mode. The optimal number of grid can be set by the accuracy of the adjustment of the calculation result of the grid number observed, and then change the size of the waveguide ridge observed the lowest two corresponding to the TM mode of the cutoff frequency of the variation, and finally to give the corresponding cross cross-section of the electric field, magnetic field maps)

简单的基于matlab的启发式搜索算法。(The matlab simulation method of heuristic search algorithm。)

系統鑑別指令.系統鑑別指令.系統鑑別指令(System commands to identify the system identification commands the system to identify instructions)

基于SPWVD变换的跳频信号参数估计和检测机器应用(SPWVD transform-based frequency-hopping signal parameter estimation and testing machines)

说明：  QPSK的Matlab实现 使用伪随机序列，低通滤波，可看图(QPSK Matlab using the pseudo-random sequence, low-pass filtering, flashcards)