Presentation Structure GNSS Based Positioning Tape TotalStation Laser
Presentation Structure GNSS Based Positioning Tape & Total-Station Laser scanner 2 RFID positioning Terrestrial Photogrammetry (camera) Conclusion 2
GNSS Based Positioning GNSS positioning in open sky area can achieve cm level of accuracy. RTK: Base and Rover (10 -15 kms) Corrections: Ion, Tropo, Satellite ephemeris, etc. Ambiguity fix? 3 3
GNSS Based Positioning GNSS positioning in open sky area can achieve cm level of accuracy. RTK: Base and Rover (10 -15 kms) Corrections: Ion, Tropo, Satellite ephemeris, etc. Ambiguity Fix. 4 4
GNSS Based Positioning Network RTK: up to 60 kms between reference stations. VRS: Virtual Reference Station MAX: Master Auxiliary Correction i. MAX: introduced by Leica 5 FKP: Flachen-Korrektur-Parameter Nearest: similar to Base & Rover Source: A research on the effect of different measuring configurations in Network RTK 5 applications
GNSS Based Positioning One of the main errors: Multipath error: ﺧﻄﺄ ﺗﻌﺪﺩ ﺍﻟﻤﺴﺎﺭﺍﺕ 6 6
GNSS Based Positioning Nearly Open Sky Area 7 7
GNSS Based Positioning Trees 8 8
GNSS Based Positioning Trees 9 9
GNSS Based Positioning Tall Buildings 10 10
Solutions Tape & Total Station 11 11
Solutions Tape & Total Station 12 12
Solutions Laser Scanner 13 13
Solutions RFID (Radio Frequency Identification) 14 14
Solutions Terrestrial Photogrammetry (SLAM) 15 15
Conclusion Need other systems to support GNSS based positioning in difficult environment. 16 16
17 Thank you 17
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