Joel D Barnes

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There are three general scenarios for the use of pseudolites in deformation monitoring systems; namely GPS augmented with pseudolites, pseudolite-only and pseudolite 'inverted' positioning. This paper focuses on the results and analysis of experimental data collected for these three pseudolite scenarios. The results suggest that the use of helical antennas(More)
He obtained a Doctor of Philosophy in satellite geodesy from the University of Newcastle upon Tyne, UK. Joel has assisted in the development of a Locata (the mobile positioning device) and testing of the " Locata technology ". Other current research interests include pseudolites, GPS receiver firmware customization and high precision kinematic GPS(More)
Mobile phone location methods based on signal time delay and angle of arrival measurements, such as time of arrival (TOA), time difference of arrival (TDOA), or angle of arrival (AOA), suffer from the non-line-of-sight (NLOS) error and multipath, especially in urban and suburban areas. On the other hand, the " fingerprinting " technique utilises(More)
in 1998 and 2000 respectively. His research is focused on developing an integrated GPS/Pseudolite/INS system for kinematic positioning, navigation and mobile mapping application. Group, which specialises in addressing precise static and kinematic applications of GPS. He is secretary of Section 1 'Positioning', of the IAG. (NAL), Japan, where he has been(More)
He obtained a Doctor of Philosophy in satellite geodesy from the University of Newcastle upon Tyne, UK. Joel has assisted in the development of the Locata receiver and testing of the Locata technology. Other current research interests include pseudolites, GPS receiver firmware customisation and high precision kinematic GPS positioning. a Doctor of(More)
Australia. He obtained a Doctor of Philosophy in satellite geodesy from the University of Newcastle upon Tyne, UK. Joel has assisted in the development of the Locata receiver (the mobile positioning device), and testing of the Locata technology. Other current research interests include pseudolites, GPS receiver firmware customisation and high precision(More)
GPS has proven to be a useful tool for precision deformation monitoring applications, in both physical geodesy, and more recently for structural engineering. For continuous structural deformation monitoring (on an epoch-by-epoch basis) it is desirable for the measurement system to deliver equal precision in all position components, all of the time. However,(More)
  • J Barnes, C Rizos, M Kanli, A Pahwa, Au, Joel Barnes
  • 2006
Despite the popularity and maturity of RTK GPS (GNSS), acceptable performance is heavily dependent on a relatively unobstructed sky-view, where there are at least five satellites with good geometry available, and on the reliability of the wireless data link used for differential corrections. In so-called " difficult " environments where satellite(More)
Recently some countries have begun conducting feasibility studies and R&D projects on High Altitude Platforms Systems (HAPS). Japan has been investigating the use of an airship system that will function as a stratospheric platform (altitude of about 20km) for applications such as environmental monitoring, communications and broadcasting. In addition, if(More)