laoyun_v21

一个是产生语音的波形和短时频谱，另一个是产生语谱图。(One is to generate voice waveforms, and short-term spectrum, and the other is to generate spectrogram.)

说明：  ： 分析当前国土资源信息系统的现实需要和发展趋势， 说明了建立新型国土资源信息系统的必要性； 重点研究了当 前国土资源信息系统建设的关键技术。这些关键技术对提高国土资源管理的效率以及现代化水平起到了巨大作用， 取得 了良好的经济效益和社会效益。(: Analysis of the current reality of land resources information system needs and trends, describes the establishment of a new need for land resource information system focuses on the current land resources information system key technology. These key technologies to improve the efficiency of land resource management, and played a huge role in the level of modernization achieved good economic and social benefits.)

用split-step方法求解非线性薛定谔(NLS)方程的例子(This code solves the NLS equation with the split-step method)

IEEE paper for analysis based on ofdm

calcs standard atmosphere

利用matlab的gui设计的带有输入和输出功能的界面图形，可视性很强，自己独立编写的数据和图形，学习非常值得(Uses the Matlab GUI design to have the input and output function the interface graph, the visibility is very strong, the data and the graph which oneself compiles independently, the study is very worthwhile.)

说明：  Matlab编写的压缩感知的库函数，包括稀疏分解和重构。(Written in compressed sensing Matlab library functions, including the sparse decomposition and reconstruction.)

说明：  跳频扩频传输系统仿真模型 文件名：ch7example28.mdl(Frequency-hopping spread-spectrum transmission system simulation model of the file name: ch7example28.mdl)

说明：  掌握用Matlab软件求解微分方程模型的解析解和数值解的方法(Master the use of Matlab software for solving differential equations model of analytical solution and numerical solution methods)

台阶的磁异常正演绘图程序 可选择不同的角度(The forward step of the magnetic anomalies can choose a different perspective drawing program)