RTK GNSS
(2021) EITL01 20211Department of Electrical and Information Technology
- Abstract
- RTK GNSS is a way of deciding the position of a GNSS receiver with high precision. It should theoretically be possible to determine the position with the precision of a couple of centimeters. Traditionally the RTK GNSS system consists of a base station and a rover. The base station knows its position and compares that to the information it gets from the satellites in order to calculate the error. The rover is the mobile unit that does not know its exact position but calculates it from satellites in ordinary fashion. The base station sends correction data based on the error to the rover, that then gets a precise position. Networked Transport of RTCM via Internet Protocol (NTRIP) is a way of transmitting the correction data to a rover. There... (More)
- RTK GNSS is a way of deciding the position of a GNSS receiver with high precision. It should theoretically be possible to determine the position with the precision of a couple of centimeters. Traditionally the RTK GNSS system consists of a base station and a rover. The base station knows its position and compares that to the information it gets from the satellites in order to calculate the error. The rover is the mobile unit that does not know its exact position but calculates it from satellites in ordinary fashion. The base station sends correction data based on the error to the rover, that then gets a precise position. Networked Transport of RTCM via Internet Protocol (NTRIP) is a way of transmitting the correction data to a rover. There are NTRIP service providers that makes it possible to receive correction data to a rover without a dedicated base station.
Anything from the choice of GNSS receiver to the choice of antenna can affect the precision. This thesis investigates how different choices of antenna can affect the precision, using three different antennas in four ways, by measuring at two different benchmarks.
The conclusion was that the largest antenna with ground plate was the best. However, if reducing the size of the antenna is important, it is better to use a larger ceramic patch antenna than an antenna without the ground plate. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/9062632
@misc{9062632,
abstract = {{RTK GNSS is a way of deciding the position of a GNSS receiver with high precision. It should theoretically be possible to determine the position with the precision of a couple of centimeters. Traditionally the RTK GNSS system consists of a base station and a rover. The base station knows its position and compares that to the information it gets from the satellites in order to calculate the error. The rover is the mobile unit that does not know its exact position but calculates it from satellites in ordinary fashion. The base station sends correction data based on the error to the rover, that then gets a precise position. Networked Transport of RTCM via Internet Protocol (NTRIP) is a way of transmitting the correction data to a rover. There are NTRIP service providers that makes it possible to receive correction data to a rover without a dedicated base station.
Anything from the choice of GNSS receiver to the choice of antenna can affect the precision. This thesis investigates how different choices of antenna can affect the precision, using three different antennas in four ways, by measuring at two different benchmarks.
The conclusion was that the largest antenna with ground plate was the best. However, if reducing the size of the antenna is important, it is better to use a larger ceramic patch antenna than an antenna without the ground plate.}},
author = {{Mirsky, Stephanie}},
language = {{eng}},
note = {{Student Paper}},
title = {{RTK GNSS}},
year = {{2021}},
}