work

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.)

该程序运用matlab可实现电子云密度分布的可视化，(matlab solve electron cloud)

matlab随机函数的使用及比较，并选择了一些应用实例(matlab random function of the use and comparison, and selection of some application examples)

We could see the difference between transfer function and state-space discription.

说明：  images of plate so as to create a database of templates

digital image processing for the image enhancement

matlab code for emotion

基于MATLAB的PQ分解发计算电力系统潮流(MATLAB and PQ decomposition based on power flow calculation)

基于掌纹识别的在线身份验证 识别算法本科毕设，欢迎大家下载学习，添加噪声处理。( Verify recognition algorithm based on palmprint recognition undergraduate complete set of online identity, Welcome to download the study, Add noise processing.)

bai thi cho cac ban Vien Thong DHCN