Low-cost, high-precision, single-frequency GPS–BDS RTK positioning
MetadataShow full item record
The integration of the Chinese BDS with other systems, such as the American GPS, makes precise RTK positioning possible with low-cost receivers. We investigate the performance of low-cost ublox receivers, which cost a few hundred USDs, while making use of L1 GPS + B1 BDS data in Dunedin, New Zealand. Comparisons will be made to L1 + L2 GPS and survey-grade receivers which cost several thousand USDs. The least-squares variance component estimation procedure is used to determine the code and phase variances and covariances of the receivers and thus formulate a realistic stochastic model. Otherwise, the ambiguity resolution and hence positioning performance would deteriorate. For the same reasons, the existence of receiver-induced time correlation is also investigated. The low-cost RTK performance is then evaluated by formal and empirical ambiguity success rates and positioning precisions. It will be shown that the code and phase precision of the low-cost receivers can be significantly improved by using survey-grade antennas, since they have better signal reception and multipath suppression abilities in comparison with low-cost patch antennas. It will also be demonstrated that the low-cost receivers can achieve competitive ambiguity resolution and positioning performance to survey-grade dual-frequency GPS receivers.
The final publication is available at Springer via 10.1007/s10291-017-0613-x
Showing items related by title, author, creator and subject.
Odolinski, R.; Teunissen, Peter (2017)© 2017, Institute of Navigation. All rights reserved.When the GPS was the only satellite constellation in orbit, instantaneous single-frequency precise (millimeter-level) positioning was not possible and more expensive ...
Odijk, Dennis; Teunissen, Peter; Zhang, Baocheng (2011)As an improvement over 'conventional' PPP, Real-Time Kinematic Precise Point Positioning (PPP-RTK) is a promising technique for high-precision (cm-level) carrier-phase based remote sensing platform positioning. The key ...
Odijk, Dennis; Teunissen, Peter; Zhang, B. (2012)High-precision (centimeter-level) real-time kinematic precise point positioning (PPP-RTK) becomes feasible when using precise corrections, as received from a regional Continuously Operating Reference Station network. These ...