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Volume 28 Issue 4
Aug.  2010
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Wang Jia-chi, Hu Xiu-lin, Zhang Yun-yu, Zhou Xian-jun. Rapid Acquisition for DS/SS Systems Using a Phase Estimator[J]. Journal of Electronics & Information Technology, 2006, 28(4): 685-689.
Citation: Wang Jia-chi, Hu Xiu-lin, Zhang Yun-yu, Zhou Xian-jun. Rapid Acquisition for DS/SS Systems Using a Phase Estimator[J]. Journal of Electronics & Information Technology, 2006, 28(4): 685-689.

Rapid Acquisition for DS/SS Systems Using a Phase Estimator

  • Received Date: 2004-11-01
  • Rev Recd Date: 2005-03-31
  • Publish Date: 2006-04-19
  • In this paper, a phase estimator of serial search acquisition is proposed for Direct-Sequences Spread- Spectrum(DS/SS) systems. According to the cross correlation between the PN signal and the auxiliary signals with the different phases, an exact and valid estimation of improving direction and magnitude for the local PN generator is given, by which half the mean acquisition can be reduced. Analysis in theory and numerical results show that the proposed method can achieve acquisition at least two times faster than the conventional serial search method for the PN sequences which periods are more than 511 in normal operating condition.
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  • Simon M K, et al.. Spread Spectrum Communications Hand Book[M]. New York: McGraw-Hill, 2002.[2]Viterbi. A J著, 李世鹤等译. CDMA扩频通信原理[M]. 北京: 人民邮电出版社,1997, 第1章.[3]Salih M, Tantaratana S. A closed-loop coherent acquisition scheme for PN sequences using an auxiliary sequence[J]. IEEE J. Select. Areas Commun., 1996, 14(10): 16531659. .[4]Salih M, Tantaratana S. A closed-loop coherent PN acquisition system with a pre-loop estimator[J].IEEE Trans. on Commum..1999, 47(9):1394-[5]Kang S, Lee Y. Rapid acquisition of PN signal for DS/SS systems using a phase estimator[J].IEEE J. Select. Areas Commun.2001, 19(6):1128-[6]Delva J, Howitt I. PN acquisition for DS/SS using a preloop parallel binary search phase estimator and a closed-loop selective search subsystem [J].IEEE Trans. on Wireless Commum..2004, 3(2):408-[7]Delva J. Coherent PN sequence acquisition[D]. Univ. Wisconsin- Milwaukee, 2001.[8]Polydoros A, Weber C L. A unified approach to serial search spread-spectrum code acquisition-Parts III[J].IEEE Trans. on Commum.1984, 32(5):542-
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