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Volume 26 Issue 2
Feb.  2000
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Journal of Beijing University of Aeronautics and Astronautics  > 2000  >  26(2): 145-148.
AMI Code, YANG Dong-kai, WEI Ke-pinget al. Improved AMI Code Used in Telemetry System[J]. Journal of Beijing University of Aeronautics and Astronautics, 2000, 26(2): 145-148. (in Chinese)
Citation: AMI Code, YANG Dong-kai, WEI Ke-pinget al. Improved AMI Code Used in Telemetry System[J]. Journal of Beijing University of Aeronautics and Astronautics, 2000, 26(2): 145-148. (in Chinese)
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Improved AMI Code Used in Telemetry System

  • Beijing University of Aeronautics and Astronautics,Dept. of Electronic Engineering

  • Received Date: 22 Oct 1998
  • Publish Date: 29 Feb 2000
    Abstract
  • An improved AMI code being suitable for telemetry system is proposed. It is realized through inserting redundancy Bit into the binary data stream to be synchronized rapidly and steadily. It has no long continuous zeroes. Its properties are analyzed, such as code efficiency, error Bit rate, power spectrum, the acquisition probability of the first frame marker. This type of code has the similar power spectrum to the original AMI code, and though its code efficiency decreases, rapid synchronization will avoid losing data and increase the credibility of data. In addition, the implementation of this code is described in detail.

     

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  • [1] Shark L K,Terrell T J,Simpson R J. Adaptive frame synchronizer for digital satellite communication systems[J]. IEE Proceedings, 1988,135(1):51~59． [2]曹志刚, 钱亚生. 现代通信原理[M]． 北京:清华大学出版社,1995. 191~206． [3]猪濑博(日),宫传洋(日). 脉冲编码调制通信进展[M]．王德文译.北京:人民邮电出版社,1990. 83~91． [4]隋厚棠. 帧同步一次通过捕获概率[J]. 电子科学学刊, 1987,6(1):1~12．
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