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OFDMforWirelineLogging
说明： 常规的单载波调制技术在带宽有限的测井电缆上的低传输速率制约着成像测井技术的发展。在分析测井
电缆传输特性和 OFDM 技术原理的基础上 ,设计了一种基于 OFDM 技术的测井电缆高速数据传输系统 ,并介绍了
基于 OFDM 技术的测井电缆高速数据传输系统的参数设计和工作原理 ,给出了不同长度测井电缆上的测试结果。
电缆实测结果表明 ,在 7 000 m长的测井电缆上 ,基于OFDM 技术的测井电缆高速数据传输系统可获得900 kbit / s
以上的数据传输速率和低于 5E28 的误码率。当变压器的接入模式为 Mode2II时 ,系统最高的数据传输速率可达到
1. 1 Mbit/ s。(To solve t he low data t ransmission rate problem in t he conventional single car rier mod2
ulation met hod for logging cable and enhance t he data t ransmission rate , a new data t ransmission
system with high data t ransmission rate for logging cable is propo sed , which is based on t he Or2
t hogonal Frequency Division Multiplexing (OFDM) technology. The working principle of OFDM
modem and t he procedure of data t ransmission system are al so presented and lot s of test s are car2
ried out on logging cables with different lengt hs. It is verified that t he data t ransmission rate can
reach 900 kbit/s on 7 000 meter s logging cable wit h bit er ror rate (BER) lower t han 5E28 , and
t he maximum data t ransmission rate is 1. 1 Mbit/s under Mode2II of t he t ransformer .)
- 2009-08-15 22:22:38下载
- 积分：1
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The-data-for-processing
这是关于信号处理方面的知识，对matlab的卡尔曼滤波十分重要(This is knowledge about signal processing and it is very importance of kalman filter for matlab
)
- 2013-07-16 09:32:36下载
- 积分：1
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Project1
改进节点法建立MNA方程 matlab算法，附有设计文档(Modified nodal equations matlab algorithm established by MNA)
- 2021-01-04 21:19:00下载
- 积分：1
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1671-4512(2011)S2-0172-04
贝叶斯压缩感知稀疏信号重构方法研究.PDF(Research on methods of signal reconstruction by Bayesian compressive sensing)
- 2014-02-02 15:33:59下载
- 积分：1
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matlabusing
常用的MATLAB实用程序，可以帮助你完成MATLAB的快速入门(Commonly used MATLAB utility that can help you complete the Quick Start MATLAB)
- 2010-05-21 17:12:30下载
- 积分：1
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GM1_1
灰色系统GM（1，1）模型的源代码，实现在数据不充分的情况下对未来的预测。(Gray system GM (1,1) model of the source code, data is not sufficient to achieve in the case of predictions for the future.)
- 2011-07-07 11:27:35下载
- 积分：1
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guideformatlab
This Filter provides a selective mean (averaging) lter. In contrast to the standard
mean lter,it preserves edges better and is less sensitive to outliers(outliers
are those that are not included in the measurement taking place.In this case averaging).
The lter smooths an image by taking an average over the neighbouring
pixels, but only includes those pixels that have a value not deviating from the
current pixel by more than a given range. The range is de ned by the standard
deviation of the pixel values within the neighbourhood . If the number of pixels
in this range is too low (less than `Minimum Pixel Fraction ), averaging over
all neighbouring pixels is performed.With the `Outlier Aware option, averaging
over all neighbouring pixels excludes the center pixel.
- 2012-02-07 01:30:23下载
- 积分：1
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interpolationslgrithm
matlab常用插值算法源代码,内有本人编写的和下载的程序()
- 2007-08-22 15:26:26下载
- 积分：1
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ssbmodforcosine
以余弦波信号为例，用matlab编码对其进行双边带抑制载波模拟调制(a cosine wave signal as an example, using Matlab coding their bilateral suppression of carrier modulation simulation)
- 2006-12-19 08:51:16下载
- 积分：1
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extrema
这是2009年huang在EMD基础上改进的算法EEMD的matlab代码！(This is the huang in 2009 based on the improved EMD algorithm EEMD matlab code!)
- 2011-10-24 11:57:27下载
- 积分：1
