xiaobo

Assume that a direct sequence spread spectrum system uses the Barker code of length 7 (N=7) as its spreading sequence. a. Randomly generate 8 symbols (d0~d7) from the set {+1,-1}. b. If each chip of the Barker code is denoted as cj, j=0~6, spread each symbol di by the Barker code. (Please refer to p. 17 of the slides.) Use “stem” to plot the signals before spreading and after spreading

用短时傅立叶变换对信号进行时频分析，并有频谱图随着窗的大小进行的对比。(Using short-time Fourier transform of the signal time-frequency analysis and frequency spectrum as the window size of the contrast.)

matlab 做的一个GUI，用于模拟电子琴(matlab to do a GUI for simulation flower)

有限差分正演模拟，进行地震波正演，源码是科罗拉多矿业学院开发的。(Finite difference forward modeling for seismic wave forward modeling, the code is the Colorado school of mining .)

AR自回归模型，主要介绍时间序列分析中重要的一个模型。(AR autoregression model, time series analysis introduces an important model.)

GMSK C语言实现其调制和解调，并提供了仿真程序(gmsk modulation——demodulation)

利用MATLAB编写的atrous算法程序,可适用于图像的多级小波分解(Prepared by the use of MATLAB algorithms Atrous procedures could be applied to image multi-level wavelet decomposition)

jpeg的 matlab的源代码，有需要的可以下载，可供学习研究(jpeg the Matlab source code that are needed can be downloaded for study)

本程序为使用剩余矩形排样法排样的矩形件排样程序，应用matlab软件编程制作。程序能够根据用户输入的排样方案对给定的25块矩形件在宽为15的板材中进行排样，并绘制矩形件排样图。(This procedure is used to drain the remaining rectangular nesting nesting kind of rectangular pieces of the program, application software programming matlab produced. Program can be ranked based on user input for a given sample solution 25 in the width of a rectangular piece of sheet 15 in the nesting, and draw a rectangular piece nesting map.)

IT IS FOR MATLAB PROJECT