Efficient real-time correlator for LS sequences

被引:5
|
作者
Perez, M. C. [1 ]
Urena, J. [1 ]
Hernandez, A. [1 ]
Jimenez, A. [1 ]
Marnane, W. R. [2 ]
Alvarez, F. [3 ]
机构
[1] Univ Alcala de Henares, Dept Elect, Alcala De Henares, Spain
[2] Natl Univ Ireland Univ Coll Cork, Dept Elect & Elect Engn, Cork, Ireland
[3] Univ Extremadura, Dept Elect & Elect Engn, E-06071 Badajoz, Caceres, Spain
关键词
D O I
10.1109/ISIE.2007.4374854
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The cross-correlation function and the side-lobes of the auto-correlation function of LS codes are zero in a certain vicinity of the zero shift. Therefore, the effects of the Inter-Symbol-Interference and Multiple-Access-Interference that appears in CDMA and multi-sensor systems are mitigated. Conventionally, the detection of these sequences has been achieved by means of straight-forward matched-filter correlators. In this paper, a new correlator which significantly reduces the total number of operations to be performed is proposed, allowing real-time operation.
引用
收藏
页码:1663 / +
页数:2
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