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室内信道    
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  indoor channel
    This paper describes three classic ultra wideband indoor channel models: POCA-NAZU model, Dajana Cassioli model and the ultra wideband indoor channel model proposed by IEEE P802.15 Working Group.
    本文介绍了三种比较经典的超宽带室内信道模型:POCA-NAZU模型、DajanaCassioli模型以及IEEE标准化组织P802.15工作组建议的超宽带室内信道模型。
    Based on the research of general indoor channel models, the indoor channel models of IEEE802.15.3a proposal are studied.
    在介绍室内环境下主要信道模型的基础上,研究了IEEE802.15.3a提案中的室内信道模型。
    Performance analysis of chaotic SS/CDMA system in rappaport indoor channel
    混沌扩频CDMA系统在Rappaport室内信道下的性能分析
短句来源
    Modeling for UWB Indoor Channel
    UWB室内信道建模
短句来源
    Ultra-Wide Bandwidth(UWB) Indoor Channel Model
    超宽带(UWB)室内信道模型
短句来源
更多       
  indoor channel
    This paper describes three classic ultra wideband indoor channel models: POCA-NAZU model, Dajana Cassioli model and the ultra wideband indoor channel model proposed by IEEE P802.15 Working Group.
    本文介绍了三种比较经典的超宽带室内信道模型:POCA-NAZU模型、DajanaCassioli模型以及IEEE标准化组织P802.15工作组建议的超宽带室内信道模型。
    Based on the research of general indoor channel models, the indoor channel models of IEEE802.15.3a proposal are studied.
    在介绍室内环境下主要信道模型的基础上,研究了IEEE802.15.3a提案中的室内信道模型。
    Performance analysis of chaotic SS/CDMA system in rappaport indoor channel
    混沌扩频CDMA系统在Rappaport室内信道下的性能分析
短句来源
    Modeling for UWB Indoor Channel
    UWB室内信道建模
短句来源
    Ultra-Wide Bandwidth(UWB) Indoor Channel Model
    超宽带(UWB)室内信道模型
短句来源
更多       
  indoor channels
    Measurement system and post processing of UWB indoor channels
    UWB室内信道测量系统及后期数据处理方法
    The methods of channel measurement were overviewed and the complete schemes in time domain and frequency domain were proposed for establishing measurement system for indoor channels.
    针对建立室内信道测量系统的需要,总结了信道测量的各类方法,提出了室内信道时域和频域测量的完整的系统方案。
  indoor channel
    This paper describes three classic ultra wideband indoor channel models: POCA-NAZU model, Dajana Cassioli model and the ultra wideband indoor channel model proposed by IEEE P802.15 Working Group.
    本文介绍了三种比较经典的超宽带室内信道模型:POCA-NAZU模型、DajanaCassioli模型以及IEEE标准化组织P802.15工作组建议的超宽带室内信道模型。
    Based on the research of general indoor channel models, the indoor channel models of IEEE802.15.3a proposal are studied.
    在介绍室内环境下主要信道模型的基础上,研究了IEEE802.15.3a提案中的室内信道模型。
    Performance analysis of chaotic SS/CDMA system in rappaport indoor channel
    混沌扩频CDMA系统在Rappaport室内信道下的性能分析
短句来源
    Modeling for UWB Indoor Channel
    UWB室内信道建模
短句来源
    Ultra-Wide Bandwidth(UWB) Indoor Channel Model
    超宽带(UWB)室内信道模型
短句来源
更多       

 

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  indoor channel
The frequency dependence utilized in the structure on the indoor channel is accounted for in the channel calculation.
      
A Detailed Experimental Study of the LEO Satellite to Indoor Channel Characteristics
      
Therefore it is essential to include it as part of the optical wireless indoor channel.
      
There is a relatively large selection of results for indoor channel soundings at frequencies around 1 to 2 GHz but relatively few at the HIPERLAN frequencies of 5 and 17 GHz.
      
If, however, the indoor channel impulse response length is too long, then the multipath power outside of the equalisation capability of the equalizer acts as a form of self interference.
      
更多          
  indoor channel
The frequency dependence utilized in the structure on the indoor channel is accounted for in the channel calculation.
      
A Detailed Experimental Study of the LEO Satellite to Indoor Channel Characteristics
      
Therefore it is essential to include it as part of the optical wireless indoor channel.
      
There is a relatively large selection of results for indoor channel soundings at frequencies around 1 to 2 GHz but relatively few at the HIPERLAN frequencies of 5 and 17 GHz.
      
If, however, the indoor channel impulse response length is too long, then the multipath power outside of the equalisation capability of the equalizer acts as a form of self interference.
      
更多          
  indoor channels
In two indoor channels, free-embryo brown trout were deposited under the gravel.
      
The effectiveness of using linear and decision-feedback equalizer for Rayleigh and Rician frequency-selective indoor channels is evaluated, and contrasted to the performance of a 4-QAM modem without equalizer.
      
Equaliser Performance for HIPERLAN in indoor channels
      
Performance Improvement by Microdiversity for Wideband Signals in Frequency Selective Fading Indoor Channels with Co-Channel Int
      
Radio Propagation Measurements and Modeling of Indoor Channels at 1800 MHz
      
更多          
  indoor channel
The frequency dependence utilized in the structure on the indoor channel is accounted for in the channel calculation.
      
A Detailed Experimental Study of the LEO Satellite to Indoor Channel Characteristics
      
Therefore it is essential to include it as part of the optical wireless indoor channel.
      
There is a relatively large selection of results for indoor channel soundings at frequencies around 1 to 2 GHz but relatively few at the HIPERLAN frequencies of 5 and 17 GHz.
      
If, however, the indoor channel impulse response length is too long, then the multipath power outside of the equalisation capability of the equalizer acts as a form of self interference.
      
更多          
  其他


With the rapid development of information and OA technologies, more and more computer terminals are located within buildings. In order to provide flexibility and easy set-up for the various terminals, and to avoid complex and expensive wiring, the concept of indoor wireless communication is appearing. In this paper, we analyzed the performance of 1-persistent CSMA protocol in indoor environment; The Throughput and Delay expressions are deduced with the consideration of capture effect and channel fading.

随着当今信息技术和OA(办公室自动化)技术的发展,建筑物内的各种计算机终端数目越来越多。为了使各种终端易于移动、安装及避免室内复杂、昂贵的布线,近几年随之出现了建筑物内(室内)无线通信的概念。本文分析了在室内信道下分时片1—坚持CSMA通信协议的性能,导出了吞吐量与延迟的表达式,在分析中考虑了捕获效应和信道的衰落特性。

A chaotic SS/CDMA system is designed by using Logistic map spreading sequences to replace m sequences in conventional SS/CDMA. On SPW, the performance of reverse link of a Chaotic SS/CDMAsystem in Rappaport indoor channel is analyized and simulated.

采用Logistic映射的混沌序列取代目前窄带CDMA系统中的m序列,构成一个混沌扩频CDMA系统,并且对其在Rappaport室内信道下的性能在SRF上进行了仿真、分析.

Under motion condition,the channel of Wireless Optical Communication (WOC) suffers from the serious time varied?space varied phase.The ability adaptive to the change of WOC channel is so important that we will discuss the blind identification and channel estimate herein.Based on the Second Order Statistics,denoising,channel estimate of special WOC receiver transmitter (RT) configuration indoor are obtained in our simulations.The simulated range of SNR is high up to 30dB.The main errors under those WOC condition,are...

Under motion condition,the channel of Wireless Optical Communication (WOC) suffers from the serious time varied?space varied phase.The ability adaptive to the change of WOC channel is so important that we will discuss the blind identification and channel estimate herein.Based on the Second Order Statistics,denoising,channel estimate of special WOC receiver transmitter (RT) configuration indoor are obtained in our simulations.The simulated range of SNR is high up to 30dB.The main errors under those WOC condition,are the survivals of singular value decomposition of autocorrelation function and the denoising,which obtained by our detail analysis.The estimate results which coincide with oral channel quantities in different SNR condition is achieved also.

时变及干扰严重是室内光无线通信应用的主要限制 .本文引入基于二阶统计量的盲辨识信道估计与去噪策略 ,对WOC室内信道变化进行自适应跟踪 .采用不同的WOC信道作为研究对象 ,完成了对噪声的估计及信道系数的预测 .模拟中对SNR的跟踪范围达 30dB ,结果证明该方法对信道变化具有适应性 .利用该方法对WOC进行改进 ,可以获得稳定、高效的WOC室内应用系统 .

 
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