Improving the design of frequency lock loops for GNSS receivers

James T. Curran; Gerard Lachapelle; Colin C. Murphy

doi:10.1109/TAES.2012.6129674

Improving the design of frequency lock loops for GNSS receivers

James T. Curran
, Gerard Lachapelle
, Colin C. Murphy

School of Engineering and Architecture

University of Calgary

Research output: Contribution to journal › Article › peer-review

Abstract

An analysis of the design and performance of the discrete-update GNSS frequency lock loop (FLL) is presented. Expressions for the design and the steady-state performance of one first-order and two second-order FLL loop filters are developed. Transient performance of the FLL in the presence of thermal noise is examined and the relative performance of four carrier frequency discriminators is studied. It is shown that careful discriminator choice can yield a 10 dB performance improvement relative to naive designs.

Original language	English
Article number	6129674
Pages (from-to)	850-868
Number of pages	19
Journal	IEEE Transactions on Aerospace and Electronic Systems
Volume	48
Issue number	1
DOIs	https://doi.org/10.1109/TAES.2012.6129674
Publication status	Published - Jan 2012

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10.1109/TAES.2012.6129674

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title = "Improving the design of frequency lock loops for GNSS receivers",

abstract = "An analysis of the design and performance of the discrete-update GNSS frequency lock loop (FLL) is presented. Expressions for the design and the steady-state performance of one first-order and two second-order FLL loop filters are developed. Transient performance of the FLL in the presence of thermal noise is examined and the relative performance of four carrier frequency discriminators is studied. It is shown that careful discriminator choice can yield a 10 dB performance improvement relative to naive designs.",

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Improving the design of frequency lock loops for GNSS receivers

Abstract

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