2003
DOI: 10.1515/9783110200089
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Satellite Geodesy

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Cited by 509 publications
(345 citation statements)
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“…On the other side, far-field effects are systematic effects arising due to multipath interferences in the presence of objects located further away from the antenna (glass surface of the surrounding buildings, trees, vehicles, other large reflective surfaces, etc.) with zero mean characteristics and have a short-periodic behaviour (Wübbena, Schmitz and Boettcher, 2006) with a typical period between 15min and 30min (Seeber, 2003). Far-field effects can be averaged out by sufficient length of observation data.…”
Section: Multipathmentioning
confidence: 99%
“…On the other side, far-field effects are systematic effects arising due to multipath interferences in the presence of objects located further away from the antenna (glass surface of the surrounding buildings, trees, vehicles, other large reflective surfaces, etc.) with zero mean characteristics and have a short-periodic behaviour (Wübbena, Schmitz and Boettcher, 2006) with a typical period between 15min and 30min (Seeber, 2003). Far-field effects can be averaged out by sufficient length of observation data.…”
Section: Multipathmentioning
confidence: 99%
“…Disebabkan multipath menjadi punca ralat yang besar, banyak kajian telah dilakukan bagi melihat kesan multipath ini (Abdi 2009;Satirapod & Rizos 2003;Soloviev & Graas 2009;Wanninger & May 2000). Multipath memberikan kesan yang berbeza terhadap pengukuran julat pseudo (15-150 m) dan fasa pembawa (£ 5 cm untuk L 1 ) kerana frekuensi isyaratnya yang berlainan di mana multipath adalah bergantung kepada frekuensi (Seeber 2003). Kesan multipath pada pengukuran julat pseudo jauh lebih besar dari pengukuran fasa pembawa.…”
Section: Metodologiunclassified
“…Kajian ini tidak meliputi kesan multipath pada pengukuran fasa pembawa. Ini kerana ralat multipath pada pengukuran fasa pembawa adalah kecil iaitu dalam julat milimeter ke sentimeter dan ia boleh diabaikan dalam kebanyakan aplikasi (Seeber 2003).…”
unclassified
“…O PPP faz uso das órbitas e correções precisas dos relógios dos satélites, disponível pelo IGS (International GNSS Service) (Seeber 2003). Requer também, para que se alcance alta acurácia, que a maioria das fontes de erros seja tratada, como os efeitos relacionados aos satélites, ao receptor, à carga oceânica, aos atrasos ionosféricos e troposféricos, à relatividade, dentre outros (Cai e Gao 2013).…”
Section: Introductionunclassified