Wide-Area GNSS Corrections for Precise Positioning and Navigation in Agriculture
Por:
Hernández-Pajares, M, Olivares-Pulido, G, Graffigna, V, García-Rigo, A, Lyu, H, Roma-Dollase, D, de Lacy, MC, Fernández-Prades, C, Arribas, J, Tisropoulos, Z, Schmidt, M, Goss, A, Erdogan, E, van Evert, FK, Blok, PM, Grosso, J, Spaltro, E, Domínguez, J, López, E, Hriscu, A
Publicada:
1 ago 2022
Categoría:
Earth and planetary sciences (miscellaneous)
Resumen:
This paper characterizes, with static and roving GNSS receivers in the context of precision agriculture research, the hybrid ionospheric-geodetic GNSS model Wide-Area Real-Time Kinematics (WARTK), which computes and broadcasts real-time corrections for high-precision GNSS positioning and navigation within sparse GNSS receiver networks. This research is motivated by the potential benefits of the low-cost precise WARTK technique on mass-market applications such as precision agriculture. The results from two experiments summarized in this work, the second one involving a working spraying tractor, show, firstly, that the corrections from the model are in good agreement with the corrections provided by IGS (International GNSS Services) analysis centers computed in post-processing from global GNSS data. Moreover, secondly and most importantly, we have shown that WARTK provides navigation solutions at decimeter-level accuracy, and the ionospheric corrections significantly reduce the computational time for ambiguity estimation: up to convergence times for the 50%, 75% and 95% of cases equal or below 30 s (single-epoch), 150 s and 600 s approximately, vs. 1000 s, 2750 s and 4850 s without ionospheric corrections, everything for a roving receiver at more than 100 km far away from the nearest permanent receiver. The real-time horizontal position errors reach up to 3 cm, 5 cm and 12 cm for 50%, 75% and 95% of cases, respectively, by constraining and continuously updating the ambiguities without updating the permanent receiver coordinates, vs. the 6 cm, 12 cm and 32 cm, respectively, in the same conditions but without WARTK ionospheric corrections.
Filiaciones:
Hernández-Pajares, M:
UPC IonSAT IEEC, Mod C3 Campus Nord UPC,C Jordi Girona 1-3, Barcelona 08034, Spain
Olivares-Pulido, G:
UPC IonSAT IEEC, Mod C3 Campus Nord UPC,C Jordi Girona 1-3, Barcelona 08034, Spain
Graffigna, V:
UPC IonSAT IEEC, Mod C3 Campus Nord UPC,C Jordi Girona 1-3, Barcelona 08034, Spain
García-Rigo, A:
UPC IonSAT IEEC, Mod C3 Campus Nord UPC,C Jordi Girona 1-3, Barcelona 08034, Spain
Lyu, H:
UPC IonSAT IEEC, Mod C3 Campus Nord UPC,C Jordi Girona 1-3, Barcelona 08034, Spain
Wuhan Univ, GNSS Res Ctr, Wuhan 430079, Peoples R China
Roma-Dollase, D:
UPC IonSAT IEEC, Mod C3 Campus Nord UPC,C Jordi Girona 1-3, Barcelona 08034, Spain
de Lacy, MC:
UJA, Jaen 23071, Spain
Fernández-Prades, C:
CTTC, Castelldefels 08860, Spain
Arribas, J:
CTTC, Castelldefels 08860, Spain
Tisropoulos, Z:
DRAXIS, Athens 15231, Greece
Schmidt, M:
Tech Univ Munich DGFI TUM, Deutsch Geodat Forschungsinst, D-80333 Munich, Germany
Goss, A:
Tech Univ Munich DGFI TUM, Deutsch Geodat Forschungsinst, D-80333 Munich, Germany
Erdogan, E:
Tech Univ Munich DGFI TUM, Deutsch Geodat Forschungsinst, D-80333 Munich, Germany
van Evert, FK:
Wageningen Univ & Res, Agrosyst Res, NL-6708 PB Wageningen, Netherlands
Blok, PM:
Wageningen Univ & Res, Agrosyst Res, NL-6708 PB Wageningen, Netherlands
Grosso, J:
ALPHA Consult, I-20090 Milan, Italy
Spaltro, E:
ALPHA Consult, I-20090 Milan, Italy
Domínguez, J:
ACORDE Technol SA, Santander 39011, Spain
López, E:
ACORDE Technol SA, Santander 39011, Spain
Hriscu, A:
GSA EUSPA, Prague 17000, Czech Republic
Green Published, gold, All Open Access; Gold Open Access; Green Open Access
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