Comparison Between Ratio Detection and Threshold Comparison for GNSS Acquisition

Author

Geiger, Bernhard C. ; Vogel, Christian ; Soudan, Michael

Author_Institution

Signal Process. & Speech Commun. Lab., Graz Univ. of Technol., Graz, Austria

Volume

48

Issue

2

fYear

2012

fDate

4/1/2012 12:00:00 AM

Firstpage

1772

Lastpage

1779

Abstract

A comparison between two widespread global navigation satellite system (GNSS) acquisition strategies is presented. The first strategy bases its decision on comparing the energy within a cell to a threshold, while the second one uses the ratio between the two largest cell energies. It is shown that the first method outperforms the second one in terms of receiver operating characteristics (ROCs) in many practically relevant cases. Moreover, despite the purported simplicity of the ratio detection method, it is further shown that its complexity is comparable to or even higher than the one of threshold comparison with adaptive threshold setting.

Keywords

adaptive signal detection; radio receivers; satellite navigation; GNSS acquisition strategy; ROC; adaptive threshold setting; cell energy; ratio detection method; receiver operating characteristics; threshold comparison; widespread global navigation satellite system acquisition strategy; Algorithm design and analysis; Arrays; Complexity theory; Correlation; Doppler effect; Noise; Satellites;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/TAES.2012.6178098

Filename

6178098