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电力巡线无人机数据传输系统研究 被引量:7

Research of UAV data transmission system based on power inspection
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摘要 针对无人机数据链系统需要同时传输不同类型信息而且其性能指标迥异的问题,提出了安全性非对称信息一体化传输技术。该技术采用直接序列扩频技术对遥测等重要数据进行附加保护,与图像数据复接后统一进行QPSK调制,解决了直接复接技术可靠性不足、UQPSK功率分配灵活性差的问题,实现了多类型信息的差别复合传输。仿真结果表明,在改善频带利用率的同时,提高了重要信息链路的接收信噪比,与理论分析一致。 The technique of integrative transmission for unsymmetrical information is put forward, aiming at transferring information having different properties or qualities on UAV (Unmanned Aerial Vehicle) data link. DS is adopted on crucial telemetry information, and then the information including telemetry and remote sensing is modulated with QPSK. The technique of integrative transmission has advantages, such as more reliable than direct link without DS and more flexible than UQPSK. Simulation of Matlab indicates the technique improve SNR of crucial information and advance frequency spectrum utilization ratio simultaneity, as good as theory analysis.
出处 《电子技术应用》 北大核心 2015年第7期77-80,共4页 Application of Electronic Technique
基金 航天技术应用产业产品孵化项目(JSKF201407290015) 天津市科技计划项目(13ZXCXGX35700)
关键词 无人机数据链 非对称信息 一体化传输 抗干扰能力 data links of UAV unsymmetrical information integrative transmission anti-interference
作者简介 魏传虎(1986-),男,工程师,主要研究方向:无人机巡检、机电一体化技术。 任杰(1970-),男,高级工程师,主要研究方向:电力生产和技术管理。 张晶晶(1985-),男,工程师,主要研究方向:人工智能、无人机巡检技术。
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参考文献6

  • 1徐海源,黄知涛,周一宇.UQPSK直接序列扩频信号在卫星通信应用中的检测和性能分析[J].信号处理,2008,24(3):361-365. 被引量:3
  • 2Markku J.Juntti,Matti Latva-aho.Bit-error probability analysis of linear receivers for CDMA systems in frequency-selective fading channels[J].IEEE Transcations on Communications,1999,47(12):1788-1791.
  • 3ION P.The study of bit error rate evolution in a mobile communications system using DS-CDMA technology[J].Journal of engineering studies and research,2012,18(2):110-115.
  • 4BORAH D K,HART B D.Frequency-selective fading channel estimation with a polynomial time-varying channel model[J].IEEE Trans.,1999,47(6):862-873.
  • 5徐辉,余晓刚,王华,匡镜明.一种多进制正交扩频方案的解扩技术研究[J].系统仿真学报,2003,15(7):1002-1004. 被引量:6
  • 6Bernard Sklar.Digital communications fundamentals and applications second edition[M].Publishing House of electronics Industry,2002:547-558.

二级参考文献11

  • 1王诺,戴逸民.用于卫星通信的一类UQPSK载波恢复算法及其性能的研究[J].电子学报,2004,32(7):1219-1222. 被引量:11
  • 2W. R. Braun, W. C. Lindsey. Carrier synchronization techniques for unbalanced QPSK signals (Parts Ⅰ and Ⅱ) [J]. IEEE Trans. Commun. ,Sept. 1978 ,COM-26(9) :1325-1341.
  • 3M. K. Simon, W. K. Alem. Tracking performance of unbalanced QPSK demodulators : Part Ⅰ-biphase costas loop with passive arm filters [ J ]. IEEE Trans. Commun., Aug. 1978, COM-26 : 1147-1156.
  • 4A. P. Clark, A. Aftelak. Carrier-phase synchronization in the demodulation of UQPSK signals [ J ]. IEEE Proceedings-Communications, Oct 1989,136 ( 5 ) :351-360.
  • 5Douglas A. Hill, John B. Bodie. Carrier detection of PSK signals [ J ]. IEEE Trans. on Communications, 2001,49 ( 3 ) :487-496.
  • 6P. Bricker,J. Luecke. Integrated receiver for NASA tracking and data relay satellite system [ J ]. IEEE MILCOM '90, Oct. 1990 : 1-5.
  • 7CCSDS. Radio frequency and modulation systems-part Ⅰ: earth stations [ S]. CCSDS 411.0-G-3. Green Book, Issue 3, Brazil, May 1997.
  • 8CCSDS. Space link extension-service management-service specification [ S ]. CCSDS 910. 11-R-1. Red Book, Issue 1, Washington, DC, USA, March 2006.
  • 9G. Burel. Detection of spread spectrum transmissions using fluctuations of correlation estimators [ J ]. IEEE-ISPACS, November 2000 : B8.2.5.1 -B8.2.5.6,
  • 10薛筱明,李建东.多进制正交码扩频系统的解扩和同步技术及其实现[J].电子学报,1998,26(1):105-110. 被引量:23

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