Precise Cooperative Positioning: A Case Study in Canada

Simon Banville, Paul Collins, Pierre Tétreault, Francois Lahaye, and Pierre Héroux

Abstract:	he convergence period associated with precise point positioning (PPP) is often a limiting factor for the adoption of this technique in applications requiring short on-site occupation times. Centimeter-level accuracies can be obtained much faster from PPP when external information on the ionosphere is provided from nearby reference stations. This strategy is however not well suited for countries with a sparse distribution of permanent reference stations, such as Canada. To overcome this limitation, a densification of the network is first obtained by consolidating all GNSS data from government agencies, universities and provincial networks. The location of PPP users in Canada also suggests that a cooperative approach, where users exchange ionospheric information, is feasible. Based on a week of data submitted to Natural Resources Canada’s online PPP service, it is shown that a cooperative approach, using both permanent stations and users as reference stations, can potentially provide better than 10-cm horizontal accuracies with a single epoch of data for nearly 68% of users.
Published in:	Proceedings of the 27th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2014) September 8 - 12, 2014 Tampa Convention Center Tampa, Florida
Pages:	2503 - 2511
Cite this article:	Banville, Simon, Collins, Paul, Tétreault, Pierre, Lahaye, Francois, Héroux, Pierre, "Precise Cooperative Positioning: A Case Study in Canada," Proceedings of the 27th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2014), Tampa, Florida, September 2014, pp. 2503-2511.
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