1671-5497(2012)06-1587-05

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.)

光伏逆变器的仿真文件，带Boost，可以很好的仿真，用于公司的实际样机仿真中，效果还不错(PV inverter simulation file with Boost, good simulation for the actual prototype simulation results were pretty good)

Matlab 数字图像矩阵数据的显示及其傅立叶变换(Digital image data matrix display and Fourier Transform)

simple problem average filter

从时域和频域上计算一个时间序列的能量，从而研究时间序列的能量(From the time domain and frequency domain calculation of the energy of a time series, time series in order to study the energy)

Full Wave Rectifier This demonstration illustrates use of the Ideal Switching Device solution method to simulate a full wave rectifier using ideal diodes.

Classic isotropic hardening model

无迹卡尔曼滤波程序，主要子程序包括：轨迹发生器、系统方程、测量方程、UKF滤波器(UKF Filter)

是一种在线序列OS-ELM算法的MATLAB程序，可参考论文A Fast and Accurate Online Sequential Learning。(matlab codes for OS-ELM(Online Sequential ELM))

包含Matlab课件及源程序，对Matlab的基本理论和实际中的应用进行描述，有利于MatlaB的自学。(Includes courseware and Matlab source code, the basic theory of Matlab and practical application in the description of the self in favor MatlaB.)