A solution of High-precision WLAN positioning based on TDOA and PTP
For indoor WLAN positioning it is difficult to achieve decimeter or centimeter-level precision questions, to IEEE1588v2 (PTP) precision network clock synchronization technology and the arrival time difference principle (TDOA), combined with non line of sight (NLOS) error mitigation techniques rangin...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2016-01-01
|
| Series: | MATEC Web of Conferences |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1051/matecconf/20166107018 |
| _version_ | 1819158129960550400 |
|---|---|
| author | Zhou Junjie Ke Yue Yu Kan Tian Di |
| author_facet | Zhou Junjie Ke Yue Yu Kan Tian Di |
| author_sort | Zhou Junjie |
| collection | DOAJ |
| description | For indoor WLAN positioning it is difficult to achieve decimeter or centimeter-level precision questions, to IEEE1588v2 (PTP) precision network clock synchronization technology and the arrival time difference principle (TDOA), combined with non line of sight (NLOS) error mitigation techniques ranging research and design a set based on the existing WLAN (IEEE802.11x series of standards) device with high precision realtime location solutions. First, build a high-performance software-defined radio network communications platform, for accurate measurement of the radio signal arrival time and is calculated based on TDOA location. Secondly, the use of high-precision clock IEEE1588v2 standard equipment PTPGrand-2100 as a network clock source, through the integrated application of multi-hop latency compensation and asymmetric compensation algorithm to ensure nanosecond clock synchronization between the various WLAN access points (AP) accuracy(Experiments show that 1 nanosecond time synchronization error is equivalent to 10 to 30 cm of positioning error). Finally, based NLOS error becomes stability principle, filtered NLOS error and pre-positioned before the data, eliminate the influence of the greatest degree of NLOS error, the time domain error control in wireless ranging 5ns or less to achieve decimeter or more accurately estimate the position. The case can be widely used in mobile Internet, logistics management, mineral exploration, health and other needs of the precise location services (LBS) in other industry sectors. |
| first_indexed | 2024-12-22T16:19:46Z |
| format | Article |
| id | doaj.art-cea0e6797e0f450cac304a630150fc98 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-22T16:19:46Z |
| publishDate | 2016-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-cea0e6797e0f450cac304a630150fc982022-12-21T18:20:17ZengEDP SciencesMATEC Web of Conferences2261-236X2016-01-01610701810.1051/matecconf/20166107018matecconf_apop2016_07018A solution of High-precision WLAN positioning based on TDOA and PTPZhou Junjie0Ke Yue1Yu Kan2Tian Di3Wenhua College, Huazhong University of Science and TechnologySchool of Computer, Hubei University of TechnologyWenhua College, Huazhong University of Science and TechnologyWenhua College, Huazhong University of Science and TechnologyFor indoor WLAN positioning it is difficult to achieve decimeter or centimeter-level precision questions, to IEEE1588v2 (PTP) precision network clock synchronization technology and the arrival time difference principle (TDOA), combined with non line of sight (NLOS) error mitigation techniques ranging research and design a set based on the existing WLAN (IEEE802.11x series of standards) device with high precision realtime location solutions. First, build a high-performance software-defined radio network communications platform, for accurate measurement of the radio signal arrival time and is calculated based on TDOA location. Secondly, the use of high-precision clock IEEE1588v2 standard equipment PTPGrand-2100 as a network clock source, through the integrated application of multi-hop latency compensation and asymmetric compensation algorithm to ensure nanosecond clock synchronization between the various WLAN access points (AP) accuracy(Experiments show that 1 nanosecond time synchronization error is equivalent to 10 to 30 cm of positioning error). Finally, based NLOS error becomes stability principle, filtered NLOS error and pre-positioned before the data, eliminate the influence of the greatest degree of NLOS error, the time domain error control in wireless ranging 5ns or less to achieve decimeter or more accurately estimate the position. The case can be widely used in mobile Internet, logistics management, mineral exploration, health and other needs of the precise location services (LBS) in other industry sectors.http://dx.doi.org/10.1051/matecconf/20166107018High-precision positioningPTP (Precision Time Protocol)Time Difference of Arrival principleWLANNon-line-ranging error |
| spellingShingle | Zhou Junjie Ke Yue Yu Kan Tian Di A solution of High-precision WLAN positioning based on TDOA and PTP MATEC Web of Conferences High-precision positioning PTP (Precision Time Protocol) Time Difference of Arrival principle WLAN Non-line-ranging error |
| title | A solution of High-precision WLAN positioning based on TDOA and PTP |
| title_full | A solution of High-precision WLAN positioning based on TDOA and PTP |
| title_fullStr | A solution of High-precision WLAN positioning based on TDOA and PTP |
| title_full_unstemmed | A solution of High-precision WLAN positioning based on TDOA and PTP |
| title_short | A solution of High-precision WLAN positioning based on TDOA and PTP |
| title_sort | solution of high precision wlan positioning based on tdoa and ptp |
| topic | High-precision positioning PTP (Precision Time Protocol) Time Difference of Arrival principle WLAN Non-line-ranging error |
| url | http://dx.doi.org/10.1051/matecconf/20166107018 |
| work_keys_str_mv | AT zhoujunjie asolutionofhighprecisionwlanpositioningbasedontdoaandptp AT keyue asolutionofhighprecisionwlanpositioningbasedontdoaandptp AT yukan asolutionofhighprecisionwlanpositioningbasedontdoaandptp AT tiandi asolutionofhighprecisionwlanpositioningbasedontdoaandptp AT zhoujunjie solutionofhighprecisionwlanpositioningbasedontdoaandptp AT keyue solutionofhighprecisionwlanpositioningbasedontdoaandptp AT yukan solutionofhighprecisionwlanpositioningbasedontdoaandptp AT tiandi solutionofhighprecisionwlanpositioningbasedontdoaandptp |