NDLI: Efficient technique for DLL S-curve side zero-crossings cancellation in global positioning system/Galileo receiver

Content Provider	IET Digital Library
Author	Rouabah, Khaled Atia, Salim Flissi, Mustapha Bouhlel, Mohamed Salim Mezaache, Salaheddine
Abstract	In this study, the authors propose a new method that eliminates ambiguity in global navigation satellite system (GNSS) code acquisition and tracking significantly. It is based on the use of a specified locally generated (SLG) pseudo-random noise code that can be correlated with any received binary offset carrier sine- or cosine-modulated signal. As a result, the correlation function (CF) together with its discriminator function (DF) at the delay locked loop (DLL) output, determined within a tracking region of (−1, 1) chips, are unambiguous and narrow, providing thus better positioning accuracy. On the other hand, the SLG-based methods CF and DF are such as those of high-resolution correlator and Strobe correlator, initially proposed for multipath mitigation in classical binary phase shift keying-modulated code. In addition, their proposed SLG-based scheme is valid for any value of the early–late chip spacing in the DLL-DF. The computer simulation results show that the proposed scheme is unambiguous for DLL code-tracking operation and has superior performance in the estimation of the delay of line of sight signal in GNSS applications.
Starting Page	338
Ending Page	347
Page Count	10
ISSN	17519675
Volume Number	13
e-ISSN	17519683
Issue Number	Issue 3, May (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-spr/13/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-spr.2018.5379
Journal	IET Signal Processing
Publisher Date	2018-12-07
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Classical Binary Phase Shift Keying-modulated Code Code Correlation Function Correlation Method Delay Line Delay Lock Loops Delay Locked Loop Output Digital Circuit Discriminator Function DLL Code-tracking Operation DLL Output DLL S-curve Side Zero-crossings Cancellation Early-late Chip Spacing Galileo Receiver Global Navigation Satellite System Code Acquisition Global Navigation Satellite System Code Tracking Global Positioning System GNSS Application GNSS Code Acquisition GNSS Code Tracking High-resolution Correlator Line-of-sight Signal Delay Estimation Modulation Coding Multipath Mitigation Phase Shift Keying Radio Navigation And Direction Finding Radio Receiver Received Binary Offset Carrier Cosine-modulated Signal Received Binary Offset Carrier Sine-modulated Signal Satellite Communication System Signal Processing And Detection SLG Pseudo-random Noise Code SLG-based Scheme Specified Locally Generated Pseudo-random Noise Code Strobe Correlator
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering

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