Open AccessMP Mitigation in Urban Canyons using GPS‐combined‐GLONASS Weighted Vectorized Receiver
Author(s) -
Tabatabaei Amir,
Mosavi Mohammad Reza,
Shahhoseini Hadi Shahriar
Publication year - 2017
Publication title -
iet signal processing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.384
H-Index - 42
ISSN - 1751-9683
DOI - 10.1049/iet-spr.2016.0372
Subject(s) - computer science , global positioning system , glonass , dilution of precision , multipath propagation , satellite system , gnss applications , canyon , satellite , remote sensing , interference (communication) , multipath mitigation , real time computing , simulation , telecommunications , geography , aerospace engineering , engineering , cartography , channel (broadcasting)
Multipath (MP) interference in urban canyons is one of the major sources of the positioning error. Among different methods for MP mitigation, vectorised receiver (VR) is a promising one in which channels can share their information, and as a result the stronger channels can aid the weaker or affected ones to be tracked more accurately. This study proposes a weighted VR (WVR) with the strategy of giving more weights to the observations with lower vulnerability to MP. To increase the number of immune satellites to MP, global positioning system, and global navigation satellite system integration in WVR has been discussed. The performance is also compared with conventional VR. The experimental results show that the proposed method both in a static mode under an exaggerated MP condition and in a drive through an urban canyon could find the position, respectively, with about 10 and 13% improvements.