Title :
DTFT-based frequency lock loop for GNSS applications
Author :
Borio, Daniele ; Camoriano, Laura ; Presti, Letizia Lo ; Fantino, Maurizio
Author_Institution :
Dipt. di Elettron., Politec. di Torino, Torino, Italy
fDate :
4/1/2008 12:00:00 AM
Abstract :
A frequency lock loop (FLL) for Global Navigation Satellite System (GNSS) applications is described here. The core element is the discrete time Fourier transform (DTFT), that leads to a maximum likelihood (ML) frequency estimation and can be conveniently implemented in a software defined radio (SDR) HW platform. The algorithm is based on the iterative evaluation of DTFTs in a single frequency until the incoming frequency is locked.
Keywords :
discrete Fourier transforms; frequency locked loops; iterative methods; maximum likelihood estimation; satellite navigation; software radio; discrete time Fourier transform; frequency lock loop; global navigation satellite system applications; iterative evaluation; maximum a likelihood frequency estimation; software defined radio HW platform; Application software; Fourier transforms; Frequency estimation; Frequency locked loops; Global Positioning System; Iterative algorithms; Lead; Maximum likelihood estimation; Satellite navigation systems; Software radio;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.2008.4560209
