Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2013, Vol. 36 ›› Issue (4): 33-38.doi: 10.13190/jbupt.201304.31.liumd

• Papers • Previous Articles     Next Articles

Correlation of Superposition Gold Sequences and Optimized Sequences Selection in Parallel Combinatory Spread Spectrum System

LIU Ming-duo1, GUO Li-li1, JIANG Xiao-fei2   

  1. 1. College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China;
    2. Microwave Scattering Department, The 54 Institute of China Electronic Technology Group Corporation, Shijiazhuang 050001, China
  • Received:2012-11-24 Online:2013-08-31 Published:2013-05-22

Abstract:

A concept concerning correlation properties of superposition sequences is proposed. And so, an optimized selection method is proposed based on analysis of correlation properties of superposition sequences for Gold sequences. According to the property of the relatively large multiple peaks of the cross-correlation functions, the smaller cross-correlation characteristic peak values of superposition sequences are optimized to decrease mutual interference of superposition sequences in asynchronous system. It is shown that the bit error probability is lower than that of non-optimized selection Gold sequences in additive white Gaussian noise channel of the asynchronous system.

Key words: parallel combinatory spread spectrum system, correlation property, Gold sequences, optimized sequences selection

CLC Number: