buttworth

eJERCICIO DE iCARBEGIE 7

信号与系统实验(高级) 实验六 电话拨号音的合成与识别(Signals and Systems Experiment (advanced) experiments six telephone dial tone Synthesis and Recognition)

说明：  给定一幅图象，输出其直方图； 通过对话框给定一个线性变换函数，实现图象的灰度拉伸； 实现对图象的均衡化。 (Given an image, the output of its histogram dialog given by a linear transformation function to realize the gray scale image stretching to achieve the equalization of image.)

福利叶变换的原始代码，欢迎各位下载批评指正(Welfare Fourier transform of the original code, download the criticism and welcome)

说明：  该仿真模型搭建了Buck-boost仿真模型，实现输入电压的变换(The Buck-boost simulation model is built to realize the input voltage conversion.)

基于多相结构的信道化发射机实信号输出matlab仿真程序:从仿真得到的图可以看到，输出8路实信号所需的带宽为输出8路复信号所需带宽的一半。另外，输出的复信号频谱结构不再像直接法实现时所得到的顺序对应结构，其原因还有待进一步研究。(Channel based on multi-phase structure of real signal of the transmitter output matlab simulation program: graph obtained from the simulation can be seen, the output 8-channel bandwidth needed for real signals, the output 8-channel half the bandwidth required for complex signals. In addition, the output structure of the complex signal spectrum is no longer realized as the direct method corresponds to the order obtained by the structure, the reason remains to be further studied.)

数字水印matlab程序，只是简单的svd跟最简单的置乱方法Arnold的应用。没有用到小波算法。上传的dwt_svd_GUI.rar是完整的数字水印算法，用的是混沌加密。(Matlab digital watermarking process, with the svd simply the easiest way to Arnold scrambling applications. Wavelet algorithm is not used. From the dwt_svd_GUI.rar is a complete digital watermarking algorithm, using a chaotic encryption.)

perturbations on a satellite

wireless sensor network manualy designed matlab code for research oriented process

说明：  介绍数字信号处理及其matlab 语言实现，包括滤波器设计等(On digital signal processing and matlab language, including the filter design and so on)