A-GNSS Performance Test in Various Urban Environments by Using a Commercial Low Cost GNSS Receiver and Service
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
The recent emergence of new Global Navigation Satellite Systems (GNSS) has resulted in a gradual improvement in the performance of positioning services. This paper verifies the degree of improvement in positioning performance of AssistedGNSS (A-GNSS) receivers using assistance information compared to standalone-GNSS receivers that do not use assistance information in various urban environments in Korea. For this purpose, field tests are performed in various urban and indoor environments in Korea. The assistance information is provided by u-blox's AssistNow Online and low-cost commercial receivers are used for mobile station receivers. Through experiments, the Time to First Fix (TTFF), acquisition sensitivity, and position accuracy performance improvement are analyzed. The results of the experiments show that using assistance data improved the performance in all experiment locations, and, in particular, a significant performance improvement in terms of TTFF.
Abstract
The recent emergence of new Global Navigation Satellite Systems (GNSS) has resulted in a gradual improvement in the performance of positioning services. This paper verifies the degree of improvement in positioning performance of AssistedGNSS (A-GNSS) receivers using assistance information compared to standalone-GNSS receivers that do not use assistance information in various urban environments in Korea. For this purpose, field tests are performed in various urban and indoor environments in Korea. The assistance information is provided by u-blox's AssistNow Online and low-cost commercial receivers are used for mobile station receivers. Through experiments, the Time to First Fix (TTFF), acquisition sensitivity, and position accuracy performance improvement are analyzed. The results of the experiments show that using assistance data improved the performance in all experiment locations, and, in particular, a significant performance improvement in terms of TTFF.
참고문헌 (21)
- Establishing Criteria for the Accuracy and Reliability of the Caller Location Information in support of Emergency Services, "ECC", ~, pp.Report 225 (2016)
- FCC, "In the Matter of Wireless E911 Location Accuracy Requirements", PS Docket No. 07-114, Washington D.C, ~ (2015)
- Kaplan, E. D., "Understanding GPS:Principles and Applications" (2006), Artech House Inc
- Karunanayake, M. D., "Analysis of assistance data on AGPS performance", Measurement Science and Technology, 18, pp.1908~1916 (2007)
- "Emergency Rescue System e-Call" (2016)[URL]
- López, J. M. L, "A-GPS performance in urban areas, Mobile Multimedia Communications", 6th International ICST Conference, MOBIMEDIA 2010, pp.413~422 (2010)
- "Writing your own gps applications: Part 2" (2008)[URL]
- "Verification of next generation eCall functionality in an IVS, Application Card, Ver. 01.00" (2018)[URL]
- "Test your eCall and ERA-Glonass system modules, Application Card, Ver. 04.00" (2018)[URL]
- Singh, S., "Comparison of assisted GPS (AGPS)performance using simulator and field tests", Proceedings of the ION GNSS Conference, pp.1~12 (2006)
- The European Parliament., "Regulation (EU) 2015", 758 of the European Parliament and of the Council concerning typeapproval requirements for the deployment of the eCall in-vehicle system based on the 112 service and amending directive 2007, EC, pp.Official Journal of the European Union, 2015[DOI]
- TTA, "Positioning system for Public Safety Stage 2:Architecture, TTAK.KO-06.0401-Part2", TTA, ~ (2015)
- TTA, "Positioning system for Public Safety Stage 3:Interfaces, TTAK.KO-06.0434", TTA, ~ (2016)
- TTA, "Positioning system for Public Safety Stage 4:Test Requirements, TTAK.KO-06.0435", TTA, ~ (2016)
- TTA, "Positioning system for Public Safety Stage 1: Requirement, TTAK.KO-06.0401-Part1", R1, 2017
- TTA, "Positioning system for Public Safety Stage 5: Test Procedure, TTAK.KO-06.0401-Part5", TTA, ~ (2017)
- "NEO/LEA-M8T u-blox M8 concurrent GNSS timing modules data sheet, UBX-14006196-R06" (2015)[URL]
- U.S. Coast Guard, "NAVSTAR GPS User equipment introduction", Public Release Version, ~ (1996)
- van Diggelen, F. S. T., "A-GPS: Assisted GPS, GNSS, and SBAS" (2009), Artech House
- Weil, L. R., "Difference Between Signal Acquisition and Tracking", Inside GNSS, 6, pp.22~27 (2011)
- Won, J. -H., "C-Band User Terminal Concepts and Acquisition Performance Analysis for European GNSS Evolution Programme", Proceedings of the 21st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2008), pp.940~951 (2008)