code

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 信号识别 最后程序运行后得到一图形 用于辨识(phone )

各种雷达信号的生成程序，包括二相编码、四相编码、LFM信号等(Various radar signal generator, including two-phase coding, four-phase coding, LFM signals)

matlab 制作歌曲 最炫民族风 满天都是小星星等(matlab produce songs coolest Ethnic twinkle little star)

Itools GUI 是itools box的GUI界面，由Lars Nø rgaard 和 Riccardo Leardi提供(Itools GUI is a freeware Gui(Graphical User Interface) for the Itools toolsbox by Lars Nø rgaard and Riccardo Leardi)

在命令窗口中输入Mandelbrot，可以绘制出Mandelbrot集合(In the command window, type the Mandelbrot, the Mandelbrot set can be drawn)

RANDFILT Generate filtered gaussian noise without initial transient

说明：  Creating four clusters in wireless sensor network

设计地震子波和反射系数序列，合成单道地震记录，再利用对数分解法求取子波，反褶积得反射系数序列(Design seismic wavelet and reflection coefficient sequence, the synthesis of single-channel seismic recording, re-use logarithmic decomposition strike wavelet deconvolution reflection coefficient sequence)

we can obtain the symbol error rate of space time block code using the modulation technique of Quadrature-Phase shift keying