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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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xiaoboju
用matlab编写的小波矩，希望对大家有所帮助(Matlab prepared using wavelet moment, I hope all of you to help)
- 2009-01-09 17:53:55下载
- 积分：1
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filter
％ y=filter(sig,fmin,fmax)
％ 对信号进行理想滤波，可完成低通，带通
％ sig为被滤波信号
％ fmin为下限频率，当fmin为0时为低通滤波器，当fmin>0时，为带通滤波器
％ fmax为上限频率，fmax>fmin
％ fs为信号的采样频率
％ y为经过滤波后的信号
(％ Y = filter (sig, fmin, fmax)％ of the ideal signal filtering, to be completed by low-pass, band-pass filter％ sig for signal％ fmin is the minimum frequency, when fmin for 0:00 for the low-pass filter, when fmin > 0, for the bandpass filter％ fmax is the upper limit frequency, fmax> fmin％ fs for signal sampling frequency％ y for the filtered signal)
- 2009-02-14 20:38:28下载
- 积分：1
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Ultrasonic_beam_structure
Mathematic model of acoustic field for ultrasonic transducers according to "Ultrasonic beam structures in fluid media" paper
- 2013-09-10 22:10:05下载
- 积分：1
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decomp_reconst_W
Decompose image into subbands, denoise using BLS-GSM method, and recompose again.
fh = decomp_reconst(im,Nsc,filter,block,noise,parent,covariance,optim,sig)
im: image
Nsc: number of scales
filter: type of filter used (see namedFilters)
block: 2x1 vector indicating the dimensions (rows and columns) of the spatial neighborhood
noise: signal with the same autocorrelation as the noise
parent: include (1) or not (0) a coefficient from the immediately coarser scale in the neighborhood
covariance: are we considering covariance or just variance?
optim: for choosing between BLS-GSM (optim = 1) and MAP-GSM (optim = 0)
sig: standard deviation (scalar for uniform noise or matrix for spatially varying noise)
Version using a critically sampled pyramid (orthogonal wavelet), as implemented in MatlabPyrTools (Eero).
JPM, Univ. de Granada, 3/03
- 2010-08-14 20:26:17下载
- 积分：1
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txrhdaima
说明： 代码是基于Matlab的图像融合算法性能测试，可以对各种融合算法进行分析并且看出各种算法融合效果的优劣(Matlab code is based on performance tests of image fusion algorithms that can analyze a variety of fusion and fusion to see the pros and cons of various algorithms)
- 2011-03-17 16:07:15下载
- 积分：1
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GUI-example2_scores-checking-system
说明： 本文件为MATLAB GUI设计简单例程，包括两个源文件（.m和.fig）,还有可供查询的文本文件和Exel表格。其功能为查询txt及Exel文件格式的学生成绩。(This document is designed to be simple routines MATLAB GUI, including the two source files (. M and. Fig), there is a text file and available for query Exel form. Txt, and its function as a check student achievement Exel file formats.)
- 2011-03-24 20:58:59下载
- 积分：1
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RECONFG
This paper presents a new method to solve the network
reconfiguration problem in the presence of distributed generation
(DG) with an objective of minimizing real power loss and
improving voltage profile in distribution system. A meta heuristic
Harmony Search Algorithm (HSA) is used to simultaneously reconfigure
and identify the optimal locations for installation of DG
units in a distribution network. Sensitivity analysis is used to identify
optimal locations for installation of DG units. Different scenarios
of DG placement and reconfiguration of network are considered
to study the performance of the proposed method. The
constraints of voltage and branch current carrying capacity are
included in the uation of the objective function. The method
has been tested on 33-bus and 69-bus radial distribution systems
at three different load levels to demonstrate the performance and
effectiveness of the proposed method. The results obtained are encouraging.
- 2014-11-17 19:04:20下载
- 积分：1
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additive_delay1_jan_09
Additive delay Linear matrix inequality simmulation
- 2013-09-27 02:19:57下载
- 积分：1
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60179234620073232118437391101
Matlab_基于角点信息和透视变换的图像镶嵌,可以对图像进行角点的处理和变化(Matlab_ Based on Corner of information and perspective transformation of the image mosaic, you can right corner of image processing and changes in)
- 2010-03-12 15:56:14下载
- 积分：1
