Studies on the distribution of the shortest linear recurring sequences

  • Authors:
  • Qian Yin;Zhi-Yong Yuan;Ping Guo

  • Affiliations:
  • Image Processing and Pattern Recognition Laboratory, Beijing Normal University, Beijing 100875, China;School of Computer Science, Wuhan University, Wuhan 430079, China;Image Processing and Pattern Recognition Laboratory, Beijing Normal University, Beijing 100875, China

  • Venue:
  • Information Sciences: an International Journal
  • Year:
  • 2009

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Abstract

The distribution of the shortest linear recurrence (SLR) sequences in the Z/(p) field and over the Z/(p^e) ring is studied. It is found that the length of the shortest linear recurrent (SLRL) is always equal to n/2, if n is even and n/2+1 if n is odd in the Z/(p) field, respectively. On the other hand, over the Z/(p^e) ring, the number of sequences with length n can also be calculated. The recurring distribution regulation of the shortest linear recurring sequences is also found. To solve the problem of calculating the SLRL, a new simple representation of the Berlekamp-Massey algorithm is developed as well.