Seed accumulating sequential estimation for PN sequence acquisition at low signal-to-noise ratio

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The sequential estimation (SE) proposed by Ward for rapid acquisition of pseudo-noise (PN) sequences performs well only at moderate chip signal-to-noise ratios (SNRs). In this paper, a seed accumulating sequential estimation (SASE) method based on accumulated seeds of the received IN sequence is proposed, which performs well at low chip SNR also. The mean acquisition time performance of the SASE method is investigated. Numerical results show that the SASE performs dramatically better than the SE at low chip SNR and the improvement becomes larger as the period of PN sequence increases. (C) 2002 Elsevier Science B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2002-11
Language
English
Article Type
Article
Citation

SIGNAL PROCESSING, v.82, no.11, pp.1795 - 1799

ISSN
0165-1684
DOI
10.1016/S0165-1684(02)00343-2
URI
http://hdl.handle.net/10203/5551
Appears in Collection
EE-Journal Papers(저널논문)
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