Details
| Original language | English |
|---|---|
| Title of host publication | 35th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2022 |
| Pages | 2828-2838 |
| Number of pages | 11 |
| ISBN (electronic) | 9781713871361 |
| Publication status | Published - 2022 |
| Event | 35th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2022 - Denver, United States Duration: 19 Sept 2022 → 23 Sept 2022 |
Abstract
Positioning in urban areas, especially with smartphones, is still a challenging task as buildings in the vicinity of the receiver can obstruct the direct line-of-sight to the satellites. In recent years, collaborative positioning has become a way to effectively mitigate common errors. However, as the extra path delays in urban areas are very unique for each user, it is crucial to find partners that have similar extra path delays so that in a double-difference approach, the errors will be reduced. In this paper, two methods are compared to see how the choice of partners will affect the positioning solution. We show that when choosing a partner with a high spatial correlation of extra path delays and performing classical double difference relative positioning, the solution is similar to a method in which for each observation, a suitable observation from another agent is found. On the contrary, if the spatial correlation of extra path delays is low, obtaining the position through the double difference method causes systematic errors which can be slightly reduced if combining the observations separately.
ASJC Scopus subject areas
- Computer Science(all)
- Information Systems
- Computer Science(all)
- Software
- Engineering(all)
- Electrical and Electronic Engineering
- Social Sciences(all)
- Communication
- Computer Science(all)
- Computer Networks and Communications
- Computer Science(all)
- Computer Science Applications
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35th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2022. 2022. p. 2828-2838.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Optimal Combination of Multi-Agent Smartphone GNSS Observations for Improved Collaborative Positioning in Urban Areas
AU - Icking, Lucy
AU - Schön, Steffen
N1 - Funding Information: This work is supported by the German Research Foundation (DFG) as Collaboration in Dynamic Sensor Networks (i.c.sens) [RTG 2159].
PY - 2022
Y1 - 2022
N2 - Positioning in urban areas, especially with smartphones, is still a challenging task as buildings in the vicinity of the receiver can obstruct the direct line-of-sight to the satellites. In recent years, collaborative positioning has become a way to effectively mitigate common errors. However, as the extra path delays in urban areas are very unique for each user, it is crucial to find partners that have similar extra path delays so that in a double-difference approach, the errors will be reduced. In this paper, two methods are compared to see how the choice of partners will affect the positioning solution. We show that when choosing a partner with a high spatial correlation of extra path delays and performing classical double difference relative positioning, the solution is similar to a method in which for each observation, a suitable observation from another agent is found. On the contrary, if the spatial correlation of extra path delays is low, obtaining the position through the double difference method causes systematic errors which can be slightly reduced if combining the observations separately.
AB - Positioning in urban areas, especially with smartphones, is still a challenging task as buildings in the vicinity of the receiver can obstruct the direct line-of-sight to the satellites. In recent years, collaborative positioning has become a way to effectively mitigate common errors. However, as the extra path delays in urban areas are very unique for each user, it is crucial to find partners that have similar extra path delays so that in a double-difference approach, the errors will be reduced. In this paper, two methods are compared to see how the choice of partners will affect the positioning solution. We show that when choosing a partner with a high spatial correlation of extra path delays and performing classical double difference relative positioning, the solution is similar to a method in which for each observation, a suitable observation from another agent is found. On the contrary, if the spatial correlation of extra path delays is low, obtaining the position through the double difference method causes systematic errors which can be slightly reduced if combining the observations separately.
UR - http://www.scopus.com/inward/record.url?scp=85162912010&partnerID=8YFLogxK
U2 - 10.33012/2022.18554
DO - 10.33012/2022.18554
M3 - Conference contribution
AN - SCOPUS:85162912010
SP - 2828
EP - 2838
BT - 35th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2022
T2 - 35th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2022
Y2 - 19 September 2022 through 23 September 2022
ER -