Details
| Original language | English |
|---|---|
| Title of host publication | 2008 5th Workshop on Positioning, Navigation and Communication |
| Pages | 121-127 |
| Number of pages | 7 |
| Publication status | Published - 2 May 2008 |
| Event | 5th Workshop on Positioning, Navigation and Communication 2008, WPNC'08 - Hannover, Germany Duration: 27 Mar 2008 → … |
Abstract
High-sensitivity GPS receivers allow to track very weak GFS signals (-180 dBW or even below) that are due to strong signal attenuation by e.g. foliage or constructive materials. Consequently, they outperform classical geodetic receivers of more than 30 dB and enable the signal tracking and positioning even indoors. This increase of GPS availability opens up new applications such as seamless outdoor-indoor positioning and navigation. However the positioning accuracy is often poor. In this paper, we use an exemplary data set from our GPS indoor test network to analyse the capability of high sensitivity GPS receivers for precise indoor positioning. A general study of the performance parameters (e.g. DOP factors, C/N0-values) gives a first impression of the improved availability. The detailed analysis of the observed-computed values of the pseudo-ranges quantify the indoor delay which can reach up to 100 m. Considering the positioning solution, it is shown that a C/N0-based signal weighting can improve the accuracy of about 70 % for the mean value over 40 min observation time and up to 40% for the scatter of the coordinate time series.
Keywords
- Diffraction, GNSS, Multipath, Stochastic model
ASJC Scopus subject areas
- Computer Science(all)
- Computer Networks and Communications
- Engineering(all)
- Electrical and Electronic Engineering
- Social Sciences(all)
- Communication
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2008 5th Workshop on Positioning, Navigation and Communication. 2008. p. 121-127.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - On the capability of high sensitivity GPS for precise indoor positioning
AU - Schön, S.
AU - Bielenberg, O.
PY - 2008/5/2
Y1 - 2008/5/2
N2 - High-sensitivity GPS receivers allow to track very weak GFS signals (-180 dBW or even below) that are due to strong signal attenuation by e.g. foliage or constructive materials. Consequently, they outperform classical geodetic receivers of more than 30 dB and enable the signal tracking and positioning even indoors. This increase of GPS availability opens up new applications such as seamless outdoor-indoor positioning and navigation. However the positioning accuracy is often poor. In this paper, we use an exemplary data set from our GPS indoor test network to analyse the capability of high sensitivity GPS receivers for precise indoor positioning. A general study of the performance parameters (e.g. DOP factors, C/N0-values) gives a first impression of the improved availability. The detailed analysis of the observed-computed values of the pseudo-ranges quantify the indoor delay which can reach up to 100 m. Considering the positioning solution, it is shown that a C/N0-based signal weighting can improve the accuracy of about 70 % for the mean value over 40 min observation time and up to 40% for the scatter of the coordinate time series.
AB - High-sensitivity GPS receivers allow to track very weak GFS signals (-180 dBW or even below) that are due to strong signal attenuation by e.g. foliage or constructive materials. Consequently, they outperform classical geodetic receivers of more than 30 dB and enable the signal tracking and positioning even indoors. This increase of GPS availability opens up new applications such as seamless outdoor-indoor positioning and navigation. However the positioning accuracy is often poor. In this paper, we use an exemplary data set from our GPS indoor test network to analyse the capability of high sensitivity GPS receivers for precise indoor positioning. A general study of the performance parameters (e.g. DOP factors, C/N0-values) gives a first impression of the improved availability. The detailed analysis of the observed-computed values of the pseudo-ranges quantify the indoor delay which can reach up to 100 m. Considering the positioning solution, it is shown that a C/N0-based signal weighting can improve the accuracy of about 70 % for the mean value over 40 min observation time and up to 40% for the scatter of the coordinate time series.
KW - Diffraction
KW - GNSS
KW - Multipath
KW - Stochastic model
UR - http://www.scopus.com/inward/record.url?scp=51349150256&partnerID=8YFLogxK
U2 - 10.1109/WPNC.2008.4510365
DO - 10.1109/WPNC.2008.4510365
M3 - Conference contribution
AN - SCOPUS:51349150256
SN - 9781424417995
SP - 121
EP - 127
BT - 2008 5th Workshop on Positioning, Navigation and Communication
T2 - 5th Workshop on Positioning, Navigation and Communication 2008, WPNC'08
Y2 - 27 March 2008
ER -