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URBANPATHLOSSMODEL
The overall objective for LTE is to provide an extremely high performance radio-access technology that offers full vehicular speed mobility and that can readily coexist with HSPA and earlier networks. OFDM/OFDMA technology is introduced for the LTE downlink, supporting very high data rates of up to 300Mbps while Single-Carrier FDMA (SC-FDMA) is used in the uplink with data rates of 80Mbps possible. Additionally, LTE supports operation both in paired and unpaired spectrum (FDD and TDD) using channel bandwidths of approximately 1.4MHz up to 20MHz. The frequency domain scheduling can be done in OFDMA. One of the main challenges in OFDMA is the high peak-to-average radio of the transmitted signal, which requires linearity in the transmitter. The linear amplifiers have low efficiency therefore, OFDMA is not an optimized solution for a mobile uplink where the
- 2013-01-01 13:30:17下载
- 积分:1
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光伏电池阵列matlab模型
光伏电池仿真模型,能模拟任意光照强度和环境温度下的光伏电池特性。(Photovoltaic cell simulation model capable of simulating photovoltaic cell characteristics at any light intensity and ambient temperature)
- 2019-05-07 18:05:48下载
- 积分:1
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IIR滤波器设计
现有一个信号:x(n)=1+cos(π*n/4)+ cos(2*π*n/3)设计及各种数字滤波器以达下列目的:
低通滤波器,滤除cos(2*π*n/3) 的成分,即想保留的成分为1+cos(π*n/4)
高通滤波器,滤除1+cos(π*n/4) 的成分,即想保留的成分为cos(2*π*n/3)
带通滤波器,滤除1+cos(2*π*n/3) 的成分,即想保留的成分为cos(π*n/4)
带阻滤波器,滤除cos(π*n/4) 的成分,即想保留的成分为1+cos(2*π*n/3)
1. 用MATLAB命令butterord求除滤波器的阶数,用命令butter设计各滤波器;画出滤波器幅度和相频相应 取各滤波器的系统函数H(z)。
(an existing signal : x (n) = a cos (* n/4) cos (2** n/3) design and digital filter to achieve the following objectives : low-pass filter, filter cos (2** n/3) the ingredients that want to retain an element of a cos (* n/4) high-pass filter, a filter cos (* n/4) components, namely to retain the element of cos (2** n/3) band-pass filter , a filter cos (2** n/3) components, namely to retain the element of cos (* n/4) band stop filter, the filter cos (* n/4) components, namely to retain the ingredients for a cos ( 2** n/3) 1. MATLAB order butterord except for the band Filter, using the order of the filter design butter; paint Filter magnitude and phase frequency of the corresponding filter system function H (z).)
- 2005-08-28 19:51:08下载
- 积分:1
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gatbx
英国设菲尔德大学遗传算法工具箱。用matlab导入路径即可使用。(University of Sheffield genetic algorithm toolbox. Using matlab import path can be used.)
- 2013-07-14 12:47:19下载
- 积分:1
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Lyapunov
小数据量法求Lyapunov指数_龙格库塔(Small amount of data Lyapunov index _ method Runge-Kutta)
- 2009-01-09 16:33:54下载
- 积分:1
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tspmatlab
31个城市的TSP问题,用蚁群算法编写的程序(TSP problem for 31 cities ,ACO program)
- 2009-12-17 16:49:55下载
- 积分:1
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ball
说明: 这是一个用matlAB计算小球以一定角度和初速度抛出运动的距离的程序(This is a small ball with a matlAB calculated to throw a certain angle and speed of movement from the beginning of the procedure)
- 2011-02-23 14:30:43下载
- 积分:1
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datetickzoom
将一串时间的数字自动划分区间在坐标中以时间格式显示,在matlab中使用的一个源码(A bunch of time division digital automatic interval display in coordinate in time format, use a source code in MATLAB
)
- 2014-10-31 08:44:19下载
- 积分:1
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close-all
ITS A MATLAB CODE FOR CR
- 2013-09-21 03:52:39下载
- 积分:1
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ap5
基于MATLAB的IIR滤波器设计,用MATLAB语言进行编程,供滤波器设计者参考(Based on the MATLAB IIR filter designing, MATLAB programming language, for filter designers)
- 2010-11-27 11:10:41下载
- 积分:1