Innovative Design for GNSS/MSS Survey/GIS Receiver

I. Khazanov, D. Kozlov, G. Zyryanov

Abstract: Precise Point Positioning (PPP) services providing State Space (SS) GNSS correcting data enter our life step by step. Their algorithms are already integrated into many professional GNSS receivers of different brands. Today, PPP is widely used in some open sky applications, e.g. agriculture and marine. At the same time the applicability of PPP for Land Survey (LS) and precise GIS is still not obvious, primarily because of the convergence problem. While steady-state PPP accuracy can reach a few centimeters, position convergence to this accuracy level is today quite lengthy to get, compared to conventional RTK against a local Base or Network. Nevertheless, we can expect that every endeavor will be made in the near future to try to shorten the position convergence time. In addition, SS corrections used for PPP are global and delivered not only by local communication means, but also by global space-based Mobile Satellite Services (MSS), operating in L-band. Thereby we expect PPP to be able to backup or be a substitute for RTK in the forthcoming years, thus bringing PPP capability into LS/GIS equipment. The minimum requirement for effective RTK/PPP is L1/L2 multiple GNSS observables provided by every modern LS receiver. At the same time, triple frequency design, even if already implemented in high-end GNSS receivers of different brands, has not yet contributed to RTK/PPP performance expectations, mainly because of not enough matured signal-in-space provided by the existing GNSS constellations. This paper presents a new innovative approach to GNSS receiver hardware architecture, which allows integration of advanced RTK positioning and the latest PPP technology achievements into a cost-effective RTK/PPP receiver. This approach is demonstrated with the new Spectra Precision SP60 Smart Antenna receiver serving LS and precise GIS applications.
Published in: Proceedings of the 29th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2016)
September 12 - 16, 2016
Oregon Convention Center
Portland, Oregon
Pages: 3562 - 3569
Cite this article: Khazanov, I., Kozlov, D., Zyryanov, G., "Innovative Design for GNSS/MSS Survey/GIS Receiver," Proceedings of the 29th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2016), Portland, Oregon, September 2016, pp. 3562-3569.
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