摘要
对n相Barker序列进行了分析,将n相Barker序列划分为若干等价类。等价类元素可通过某种变换相互转化,因此,将n相Barker序列设计简化为等价类的设计。用计算机搜索的方法,得出具有某种长度的所有n相Barker序列等价类。采用{-1,0,+1}作为序列的元素集合,也是取得Barker序列的一种手段。通过与2相Barker序列比较,采用类似2相Barker序列结构,得到的奇数长度的三值Barker序列。虽然该序列具有较长的序列长度,但序列的相关增益较小。通过计算机搜索可以得到任意长度、具有最大相关增益的三值Barker序列。
All n-phase Barker sequences is partitioned into several equivalence classes by a special transformation group on n-phase Barker sequences. All n-phase Barker design is reduced to class representative design. All n-phase Barker sequence classes with individual length and n are exhausted by computer searching, the resuits are given. By adopting { -1,0, ＋1 } as the alphabet of the sequence, a new kind of Barker sequence can also be achieved. By analyzing the known {-1,0,-1 } Barker sequence, it has the same skew-symmetry with 2-phase Barker sequences with odd length. By this properties to design Barker sequence we can get some {-1,0,-1 } Barker sequences with odd length, which have lower correlation gain in respect to their sequence length. By the aid of computer, the Barker sequences with arbitrary length and the most correlation gain are achieved.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2006年第6期798-800,852,共4页
Systems Engineering and Electronics
