Tampere University of Technology

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Weak Signal Acquisition in Satellite Positioning

Research output: Collection of articlesDoctoral Thesis

Details

Original languageEnglish
PublisherTampere University of Technology
Number of pages177
ISBN (Electronic)978-952-15-2425-7
ISBN (Print)978-952-15-2408-0
StatePublished - 10 Sep 2010
Publication typeG5 Doctoral dissertation (article)

Publication series

NameTampere University of Technology. Publication
PublisherTampere University of Technology
Volume906
ISSN (Print)1459-2045

Abstract

This thesis discusses the acquisition of Global Navigation Satellite System (GNSS) signals that are attenuated in propagation and proposes a receiver independent method of characterizing the acquisition performance of the signals. It then applies the proposed method to several GNSS signals with different assumptions about available acquisition assistance. Two receiver improvements are proposed, one to increase success rate in parallel acquisition and another to enhance sensitivity in serial acquisition. In the remaining part of the thesis, two techniques are presented for making satellite signals easier to acquire, one involving a novel family of ranging sequences and another involving a special symbol sequence for transmitting time information over a heavily attenuating propagation channel.

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