计算机科学 ›› 2015, Vol. 42 ›› Issue (3): 39-41.doi: 10.11896/j.issn.1002-137X.2015.03.008

• 网络与通信 • 上一篇    下一篇

接收机运动情况下天线简谐运动对信道循环平稳性影响的分析

魏利霞,曹士坷   

  1. 南京邮电大学通信与信息工程学院 南京210003,南京邮电大学通信与信息工程学院 南京210003
  • 出版日期:2018-11-14 发布日期:2018-11-14

Analysis of Influence of Antenna Simple Harmonic Motion on Channel Cyclostationarity under Case of Receiver Motion

WEI Li-xia and CAO Shi-ke   

  • Online:2018-11-14 Published:2018-11-14

摘要: 在均匀散射环境下,当天线做简谐运动时,信道中会引入循环平稳。通过分析信道循环平稳的产生机理,定义了循环平稳度来衡量引入的循环平稳。首先当接收机以恒速做直线运动且接收机上的天线做简谐运动时,研究了信道的自相关特性,包括循环平稳性;然后用Matlab仿真工具绘出有关曲线,仿真实验结果更加清晰地显示了信道的循环平稳性;最后揭示了信道循环平稳的研究意义,并对其在该领域的应用前景进行了展望。

关键词: 循环平稳,接收机,天线,简谐运动,信道模型

Abstract: Simple harmonic motion (SHM) can induce cyclostationarity (CS) in channel autocorrelation under isotropic scattering (ISC) environments.With analysis of generation mechanism of cyclostationarity(CS) in channel,cyclostationa-rity of the channel can be measured by defining degrees of cyclostationarity (DCS).The autocorrelation characteristics of the channel,including cyclostationarity,were studied when the receiver is moving at a constant speed along a straight line and the antenna is doing simple harmonic motion at the same time.Then related curves were simulated by Matlab,showing the cyclostationarity of channels more clearly.The significance of cyclostationarity and a discussion on the future research topics were refered at last.

Key words: Cyclostationary,Receiver,Antenna,Simple harmonic motion,Channel model

[1] Rad H S,Gazor S.Effects of mobile rotational movements inwireless propagation channels[J].IET Communications, 2008,2(9):1109-1117
[2] Rad H S,Gazor S.The impact of non-isotropic scattering and di-rectional antennas on mimo multicarrier mobile communication channels[J].IEEE Trans.Communications,2007,56(4):642-652
[3] Liu Yin-sheng,Tan Zhen-hui,Chen Xia.Modeling the Channel Time Variation Using High-Order-Motion Model[J].IEEE Communications Letters,2011,15(3):275-277
[4] Goldsmith A.Wireless Communications[M].Cambridge Uni-versity Press,2005
[5] Gardner W A.Statistical Spectral Analysis:A Non-probabilistic Theory[M].Prentice-Hall,Englewood Cliffs,1987
[6] Zivanovic G D,Gardner W A.Degrees of cyclostationarity and their application to signal detection and estimation[J].Signal Processing,1991,22(3):287-289
[7] Lan Kun-chan,Shih Wen-yuah.Estimating Step Distance Using Simple Harmonic Motion[C]∥ Vehicular Technology Confe-rence(VTC Spring),2012 IEEE 75th.2012:1-5
[8] Chen Liang-yu,Lan Kun-chan.Estimating walking distance with a smart phone[C]∥2012 Fifth International Syposium on Parallel Architectures,Algorithms and Programming(PAAP).2012:166-171
[9] Gardner W A.Cyclostationarity in Communications and SignalProcessing[M].IEEE Communication Society,1994
[10] M S,Hosseini A T,Amindavar H,et al.Cyclostationary Detector in Ultra Wideband Impulse Radar[C]∥2011 IEEE CIE International Conference on Radar.Volume 1,Oct.2011:24-27

No related articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!