Presentation Title

Repeatability Performance Evaluation of RTK and VRS Positioning: A Comparative Study

Start Date

November 2016

End Date

November 2016

Location

HUB 265

Type of Presentation

Oral Talk

Abstract

Throughout the past few decades, invaluable advancements were made in the technology and implementation of the Global Positioning System (GPS) in terms of accuracy and reliability. Although continual scientific progression in GPS technology has led to centimeter-level accuracy and precision, repeatability is another vital aspect. Repeatability refers to survey measurements that can be repeated at any point in time and still provide precise measurements. Whether these data points are obtained using Real Time Kinematic (RTK) surveying or a Virtual Reference Station (VRS) system, repeatability performance remains an integral part of not only obtaining accurate and reliable survey data, but in the practical application of the data as well. To analyze and compare the degree of repeatability of RTK surveying and a VRS network, tests were performed at three distinct test sites distributed throughout Los Angeles County in Southern California. The consistent results from the tests evaluated indicate that, if performed under the best surveying practice and under ideal conditions, the RTK survey will produce a higher degree of repeatability in positioning than a VRS network.

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Nov 12th, 11:00 AM Nov 12th, 11:15 AM

Repeatability Performance Evaluation of RTK and VRS Positioning: A Comparative Study

HUB 265

Throughout the past few decades, invaluable advancements were made in the technology and implementation of the Global Positioning System (GPS) in terms of accuracy and reliability. Although continual scientific progression in GPS technology has led to centimeter-level accuracy and precision, repeatability is another vital aspect. Repeatability refers to survey measurements that can be repeated at any point in time and still provide precise measurements. Whether these data points are obtained using Real Time Kinematic (RTK) surveying or a Virtual Reference Station (VRS) system, repeatability performance remains an integral part of not only obtaining accurate and reliable survey data, but in the practical application of the data as well. To analyze and compare the degree of repeatability of RTK surveying and a VRS network, tests were performed at three distinct test sites distributed throughout Los Angeles County in Southern California. The consistent results from the tests evaluated indicate that, if performed under the best surveying practice and under ideal conditions, the RTK survey will produce a higher degree of repeatability in positioning than a VRS network.