We propose some methods for multiplying the length and type of sequences with elements on a set of commuting variables which have zero non-periodic autocorrelation function. We use base sequences of lengths n+1, n+1, n, n in order to construct four directed sequences of lengths n+1, n+1, n, n and ty
Base sequences, complementary ternary sequences, and orthogonal designs
✍ Scribed by Dragomir Ž. Doković
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 535 KB
- Volume
- 4
- Category
- Article
- ISSN
- 1063-8539
No coin nor oath required. For personal study only.
✦ Synopsis
We construct several new families of orthogonal designs related to one of the weighing matrix conjectures. We also construct some new complementary quadruples (A; B; C; D ) of (0, fi}sequences of length n and total weight w, denoted as CTQ(n, w). The word complementary refers to the fact that the sum of nonperiodic autocorrelation functions of these four sequences is a delta function. W e propose a conjectural formula for n(w), the smallest positive integer n such that CTQ(n, U ) exist, and survey the known results for all w 5 100. We also exhibit the first example of base sequences BS(32,31).
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