Open AccessGNSS interference mitigation: A measurement and position domain assessment
Author(s) -
Borio Daniele,
Gioia Ciro
Publication year - 2020
Publication title -
navigation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.847
H-Index - 46
eISSN - 2161-4296
pISSN - 0028-1522
DOI - 10.1002/navi.391
Subject(s) - gnss applications , pseudorange , interference (communication) , computer science , jamming , position (finance) , satellite , band stop filter , global positioning system , filter (signal processing) , satellite system , satellite navigation , precise point positioning , remote sensing , telecommunications , real time computing , engineering , aerospace engineering , physics , low pass filter , geology , computer vision , channel (broadcasting) , finance , economics , thermodynamics
Modern Global Navigation Satellite System (GNSS) receivers have to withstand significant levels of interference in order to operate under harsh conditions, such as in the presence of jamming and of other Radio Frequency (RF) threats. A possibility is to implement pre‐correlation interference mitigation techniques that operate directly on the samples provided by the receiver front‐end. This paper provides an assessment of five interference mitigation techniques at the measurement and position level. The analysis focuses on the Adaptive Notch Filter (ANF) and on four Robust Interference Mitigation (RIM) techniques. Several data collections were performed in the presence of jamming, and the data collected were used for the analysis that shows that RIM techniques do not introduce biases at both the measurement and position level. While the ANF delays pseudorange measurements, the biases introduced are predominantly common to all the observations with a negligible impact on a Single Point Positioning (SPP) solution.