Development of a Custom GNSS Software Receiver Supporting Supercorrelation

Mitigating multipath interference is one of the biggest challenges in radio positioning. The Supercorrelation™ technology developed via Focal Point Positioning (FPP) suppresses multipath interference by performing long coherent integration while undergoing complex motion in order to isolate the Line...

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Bibliographic Details
Published in:Engineering Proceedings
Main Authors: Javier Gonzalo Garcia, Johannes Rossouw van der Merwe, Paulo Esteves, Dana Jamal, Samir Benmendil, Chris Higgins, Rose Grey, Eugene Coetzee, Ramsey Faragher
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Subjects:
Supercorrelation
GNSS
multipath mitigation
Non-Line-Of-Sight (NLOS) suppression
SDR
Online Access:https://www.mdpi.com/2673-4591/54/1/9
Description
Summary:Mitigating multipath interference is one of the biggest challenges in radio positioning. The Supercorrelation™ technology developed via Focal Point Positioning (FPP) suppresses multipath interference by performing long coherent integration while undergoing complex motion in order to isolate the Line-Of-Sight (LOS) signals from the unwanted multipath interference. This article presents the current status of a Supercorrelating Global Navigation Satellite System (GNSS) Software-Defined Radio (SDR) and a systematic testing framework. The SDR receiver is capable of real-time processing and facilitates independent testing and demonstrations. The testing framework uses synthetic signals with a Spirent Radio-Frequency Constellation Simulator (RFCS) with Sim3D to create controlled and repeatable scenarios. The initial results demonstrate the benefits of Supercorrelator Technology (S-GNSS) for navigation resilience.
ISSN:2673-4591

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