In this paper we analyse the operation of a fully digital Phase Lock Loop (PLL) in a false lock regime, using real data. The issue has been noticed while we were testing performance of our software receiver in a moving user scenario. While the phenomenon of false lock has been described in other papers about PLLs, our intent is to describe a practical, and in our opinion interesting, issue we encountered and how we got over it.
Rao, M., Lo Presti, L., Fantino, M., Garbo, G. (2009). Phase lock loop false lock avoidance in presence of global navigation satellite system signal. In Proceedings of 13th IAIN World Congress.
Phase lock loop false lock avoidance in presence of global navigation satellite system signal
RAO, Marco;GARBO, Giovanni
2009-01-01
Abstract
In this paper we analyse the operation of a fully digital Phase Lock Loop (PLL) in a false lock regime, using real data. The issue has been noticed while we were testing performance of our software receiver in a moving user scenario. While the phenomenon of false lock has been described in other papers about PLLs, our intent is to describe a practical, and in our opinion interesting, issue we encountered and how we got over it.
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