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Transmission-Model
无线传感器网络定位用到的无线传输模型
Regular Model, Logarithmic Attenuation Model, DOI Model, RIM Model
(Wireless sensor network localization using wireless transmission model, Regular Model, Logarithmic Attenuation Model, DOI Model, RIM Model
Achieve functional distance and transmission attenuation swap
~~~~~~~~~~~~~~~~~~~~~~Regular Model~~~~~~~~~~~~~~~
In this model, the radio range is a circle
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ReceivedSignalStrength=SendingPower-PathLoss
e.g, RSS=Pt-Pl(d0)-10*η*log10(dist/d0)
Pt:transmit power
pl(d0):the pass loss for a reference distance of d0
ηis the path loss exponent
above parameters are saved in ../Parameters_Of_Models.mat
dist:distance between sender and receiver(m)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
typical value:Pt=0-4dBm(max),Pl(d0)=55dB(d0=1m),η(2~4)=4(indoor,outdoor)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~Logarithmic Attenuation Model~~~~~~~~~
In this model, the radio range is a circle
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ReceivedSignal)
- 2013-08-31 18:59:05下载
- 积分:1
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zoomfft
zoomfft matlab代码,需要改(zoomfft matlab code, need to change)
- 2015-01-03 20:50:04下载
- 积分:1
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image-compression
image compression algorithm
- 2014-02-20 10:18:20下载
- 积分:1
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时频分析工具箱
法国中央科学研究院和美国RICE大学共同开发了时频分析工具箱(matlab emd)
是一款非常好用的时频分析计算工具,它是分析时变非平稳信号的有力工具,matlab 时频分析工具箱提供了时间域与频率域的联合分布信息,清楚地描述了信号频率随时间变化的关系。
其中主要含有四种函数:
信号产生函数,可以产生不停类型的信号,如Chirp信号,bpsk信号等。
时频分析函数,可以计算线性、Cohen类、仿射类非线性分析值函数,例如短时傅里叶变换(STFT),Gabor变换,谱图,Wigner-Ville(WVD)等。
分析处理函数
图形显示函数,如等高线、三维图等。(Time-frequency analysis toolbox)
- 2020-11-13 16:39:42下载
- 积分:1
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DEA的Matlab程序
DEA的CCR模型程序及其对偶模型(包括松弛变量)的程序计算(CCR model program and its dual DEA model (including relaxation variables) program calculation)
- 2021-02-08 13:49:54下载
- 积分:1
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CI
说明: 估计融合算法里面,经典算法CI算法的实现,针对了CV和CA模型(Inside estimation fusion algorithm, the classical algorithm CI algorithm, for the CV and CA model)
- 2016-06-13 09:44:46下载
- 积分:1
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clusting
模糊C均值聚类的例程,matlab环境下(Fuzzy C-Means clustering routines, matlab environment)
- 2011-08-10 12:43:19下载
- 积分:1
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erweima
通过对二维码的3个顶点定位,扫描从而确定二维码的位置为后续解码做准备(hrough the three vertices of qr code, scan to determine the location of the qr code in preparation for the subsequent decoding
)
- 2015-04-25 09:07:05下载
- 积分:1
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pdesetbd
PDESETBD设置边界条件偏微分方程工具箱的界限。(PDESETBD boundary conditions set the limits of partial differential equation toolbox.)
- 2009-06-25 22:42:52下载
- 积分:1
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gas-furnace
mtlab cod fuzzy wavelet neural network
- 2012-12-30 07:27:27下载
- 积分:1