Pseudo-random bit stream

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The Pseudorandom Binary Sequence (PRBS) is a binary signal which approximates the spectrum of white noise and is generated by a deterministic random generator .

The signal of a pseudorandom binary sequence can (typically) have the values ​​+1 and −1. It is used as an alternative to white noise. The reproducibility of the signal is advantageous here. It is used in communications engineering for code division multiplexing , band spreading , encryption and checking of transmission channels and in control engineering for analyzing the impulse response using maximum length sequence .

A PRBS can be generated with a linear feedback shift register .

literature

  • Natasa Zivic: Modern Communications Technology . Walter de Gruyter, Berlin 2016, ISBN 978-3-11-041338-0 .
  • H. Jonathan Chao, Xiaolei Guo: Quality of Service Control in High-Speed ​​Networks . John Wiley & Sons, Hoboken 2002, ISBN 0-471-00397-2 .