Global Navigation Satellite Systems (GNSS); Analysis of achievable accuracies in Precise Point Posit

Jul 27th, 2016
Studypool Tutor
York University
Price: $5 USD

Tutor description

Global Navigation Satellite Systems (GNSS); An analysis of the achievable accuracies in Ireland from online Precise Point Positioning (PPP) post-processing services; All horizontal positions computed by the PPP online services were within one centimetre of the known D147 coordinates. The vertical positions were no larger than three centimetres; this was considered acceptable as vertical accuracy is generally 2-3 times less accurate; Trimble RTX tended to produce the most accurate results and proved to be the most reliable in the vertical component. Thus PPP has proven to be a suitable alternative technique to establish control; X= (v+h)cosφcosλ Eq. 10 Y=(v+h)cosφsinλ Eq. 11 Z=((1- e^2 )v+h)sinφ Eq. 12

Word Count: 4014
Showing Page: 1/15
An analysis of the achievable accuracies in Ireland from online PrecisePoint Positioning (PPP) post-processing servicesKevin O Mahony, BSc (Hons) GeomaticsSupervisor: Dr. Audrey Martin FRICS FSCSISpatial Information Sciences Group,College of Engineering and Built Environment,Dublin Institute of Technology, IrelandSUMMARYGlobal Navigation Satellite Systems (GNSS) are a powerful tool for modern surveying,capable of computing highly accurate coordinates. Survey techniques such as Differential(D)GNSS, Real Time Kinematic (RTK) and Static are currently frequently used in Ireland butrely heavily on established national survey infrastructure. A possible infrastructural-lightalternative to these techniques is Precise Point Positioning (PPP). Compared to traditionaltechniques, PPP does not require observations from a reference station, as it uses moreprecise satellite orbital information, and therefore requires less national surveyinfrastructure. There is, however, a lack of information available concerning the accuraciesobtainable from PPP in Ireland.In recent years, several international free post processing services have been developed toprocess PPP solutions including: CSRS-PPP; AUSPOS; OPUS; Magic GNSS; GAPS; APPSand Trimble RTX). This research outlines an effective methodology for using these onlineservices and transforming resulting computed coordinates from International TerrestrialReference Frame (ITRF) to the Irish Transverse Mercator (ITM). Fu

Review from student

Studypool Student
" all I can say is wow very fast work, great work thanks "
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1820 tutors are online

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors