susan

for radar pulse compression

some code for radar system simulation

为了提高通信系统的信息传输速率，人们提出了UWB通信系统，即Ultra-Wideband 通信系统。在UWB系统中，信号的带宽一般都在GHz的量级，这么宽的带宽造成了UWB系统和现有的通信系统频谱的重叠。为了降低对现有通信系统的影响，UWB信号的设计需要满足一定的频谱模板。如果一个信号的频谱基本满足频谱模板的规定（即在绝大部分频段内功率小于规定区间的上限），我们可以认定其为一个UWB信号。(In order to improve communication systems, information transmission rate of UWB communications systems have been proposed, namely, Ultra-Wideband communication systems. In the UWB system, the signal bandwidth will generally be in the order of GHz, caused such a wide bandwidth of UWB system and the existing communications system spectrum overlap. In order to reduce the impact of the existing communication systems, UWB signal design needs to meet certain spectral mask. If a signal spectrum can basically meet the spectral mask (that is, in most of the provisions of band power is less than the maximum range), we can assume it as a UWB signal.)

Horizontal rank filtering image

Power Systems Debbs Solution

基于传输矩阵法（TMM）计算VCSOA（垂直腔半导体光放大器）的稳态增益的程序。由于是从将输入端功率Pin作为已知条件，程序用Matlab优化工具箱中的fsolve函数计算了满足边界条件时的输出功率。这对于相关研究开发都是较好的资料。(This is a set of source codes, which are used for calculating the steady state gain of VCSOA based on the transfer matrix method(TMM). Since the input power of the VCSOA is regarded as a already-known condition, this program, the function "fsolve" in the Matlab Optimization Toolbox is used for obtaining the output power of the VCSOA when the input power is at some value. This is a good material for further studying the related problems, especially when using the Matlab for device simulations. )

本书实现了基于Matlab 与Excel 的实验数据自动处理，有助于完成自动化测试(Based on the book to achieve the automatic processing of the experimental data with Excel, Matlab, helps automate the testing)

说明：  该程序是日本人用matlab写出来的提取pitch的，效果很好，唯一的缺点是算的太慢(The program is written in Japanese with matlab the extraction of the pitch, well, the only drawback is that the slow count)

这是讲凸优化与非线性优化的很好的书。国外大牛力作，做移动通信、金融、运筹的同学可好好看此书(This is a book on convex optimization and non-linear optimization which contains many detailed examples. It can be useful for Who are major in wireless communication,financial and operation research)

说明：  MATLAB/Asimulink实现T型三电平逆变电路的SVPWM控制，压缩包中含模型与参考论文。matlab版本2018a。(MATLAB/Asimulink to achieve the T - type three - level inverter SVPWM control, compression package with model and reference paper.Matlab 2018a.)