网站首页

登录

chengxu

于 2009-11-29 发布文件大小:29KB

 0  113

下载积分: 1 下载次数: 30

我要下载

代码说明：

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.)

下载说明：请别用迅雷下载，失败请重下，重下不扣分！

发表评论

0 个回复

Atruetrajectoryprocedures
产生真实运动轨迹的程序-系统在建模的时候，可以用一个确定的状态方程表述出，不存在有随机量。(To have a real trajectory of the process- system in the modeling, they can identify with a state equation formulation that does not exist there is a random quantity.)

2008-04-16 11:40:14下载

积分：1
EIT_eidors_v3.6
EIDORS的电阻抗成像仿真软件。版本3.6，日期为7 Jul 2012。采用matlab编写。汇总了大量的算法(EIDORS electrical impedance tomography simulation software. Version 3.6, Date 7 Jul 2012. Using matlab. A summary of a large number of algorithms)

2021-03-04 13:59:32下载

积分：1
bpNeural-network-instance
例1 采用动量梯度下降算法训练 BP 网络。例2 采用贝叶斯正则化算法提高 BP 网络的推广能力。在本例中，我们采用两种训练方法，即 L-M 优化算法（trainlm）和贝叶斯正则化算法（trainbr），用以训练 BP 网络，使其能够拟合某一附加有白噪声的正弦样本数据。(Example 1 uses the momentum gradient descent algorithm to train the BP network. Example 2 uses the Bayesian regularization algorithm to improve the generalization ability of BP network. In this example, we use two training methods, the LM optimization algorithm (trainlm) and the Bayesian regularization algorithm (trainbr), to train the BP network to fit a sine sample with white noise data. )

2017-05-09 18:35:02下载

积分：1
8050
三极管8050的管脚图和参数Transistor 8050 and parameters of the pin map(Transistor 8050 and parameters of the pin map,Transistor 8050 and parameters of the pin map)

2009-05-09 21:46:12下载

积分：1
LSSVMlabv1_8_R2009b_R2011a
Matlab toolbox for least squares support vector machines.

2011-07-30 03:36:42下载

积分：1
实验7-线形拟合
1、掌握MATLAB优化工具箱的基本用法，对不同算法进行初步分析、比较。 2、练习实际问题的非线性最小二乘拟合。(1.Understand the basic usage of Matlab optimization tool box. Analize and Compare different algorithms. 2. Practise nonliear minimum second order fitting using practical problems.)

2005-08-06 09:44:00下载

积分：1
modulation
说明：通信信号相干调制解调源码 Fc=10 ％载频 Fs=40 ％系统采样频率 Fd=1 ％码速率 N=Fs/Fd df=10 numSymb=25 ％进行仿真的信息代码个数 M=2 ％进制数(Coherent modulation and demodulation of communication signal source Fc = 10 carrier frequency Fs = 40 systematic sampling frequency Fd = 1 code rate N = Fs/Fd df = 10 numSymb = 25 of the information code to simulate the number of M = 2 hexadecimal number)

2008-11-16 20:08:07下载

积分：1
YUV-tuxiangxianshi
yuv格式数据图像显示，420格式，yuv转rgb(yuv geshi shuju tuxiang xianshi，420 geshi， yuv to rgb)

2012-11-20 18:34:10下载

积分：1
3
说明：涂层物质中的电磁脉冲特性与雷达截面减缩，涂层物质中的电磁脉冲特性与雷达截面减缩(Radar Cross Section Reduction and Characteristic of Electromagnetic Pulse in Antiradar Coating M aterial )

2010-08-11 16:34:09下载

积分：1
PosixSVM
用改进SVM实现人脸特征提取和识别，用matlab编写，和结果分析(A matlab code of enhanced SVM for face recognition)

2009-10-26 23:55:58下载

积分：1

696518资源总数
104349会员总数
32今日下载