%PDF-1.4 % 1 0 obj << /Type /Pages /Count 1 /Kids [ 2 0 R ] >> endobj 2 0 obj << /Type /Page /Parent 1 0 R /Resources << /ProcSet [ /PDF /Text /ImageB /ImageC /ImageI ] /Font << /QuickPDFF7ef4aedb 70 0 R /QuickPDFFe598cb9c 110 0 R >> >> /Contents [ 5 0 R ] /MediaBox [ 0 0 595.2756 841.8898 ] /CropBox [ 0 0 595.2756 841.8898 ] >> endobj 3 0 obj << /Type /Catalog /Pages 1 0 R /Metadata 111 0 R >> endobj 4 0 obj << /Producer (Debenu Quick PDF Library 11.15 \(www.debenu.com\)) /Creator (Debenu Quick PDF Library 11.15 \(www.debenu.com\)) /CreationDate (D:20190516162250+02'00') /ModDate (D:20190516162250+02'00') >> endobj 5 0 obj << /Length 2372 /LC /iSQP >> stream 0 Tr /QuickPDFFe598cb9c 14 Tf 0 0 0 rg 100 Tz 0 Tw 0 Tc 0 Ts BT 1 0 0 1 59.2528 770.8329 Tm (Research on Application of RTPPP for the Hydrographic Surveying in Vietnam)Tj ET /QuickPDFFe598cb9c 11 Tf 0 0 0 rg BT 1 0 0 1 193.7483 731.3912 Tm (Pham Can and Nguyen Ngoc Lau \(Vietnam\))Tj ET /QuickPDFFe598cb9c 11 Tf 0 0 0 rg BT 1 0 0 1 56.6929 689.3613 Tm 14.663 TL (Key words: )' ET /QuickPDFF7ef4aedb 11 Tf 0 0 0 rg BT 1 0 0 1 141.7323 689.3613 Tm 14.454 TL (GNSS/GPS; Hydrography; RTPPP; IGS-RTS Corrections; Bathymetric; Maritime)' (Applications; Real-time Kinematic Positioning; Hydrographic Surveying)' ET /QuickPDFFe598cb9c 11 Tf 0 0 0 rg BT 1 0 0 1 56.6929 646.8416 Tm 14.663 TL (SUMMARY)' ET /QuickPDFF7ef4aedb 11 Tf 0 0 0 rg BT 1 0 0 1 56.6929 618.4951 Tm 14.454 TL (At present, the real-time kinematic relative positioning techniques such as DGPS and RTK are being used)' (widely for hydrographic surveying in order to determine the horizontal position of river/sea bottom points.)' (Limitations of the relative positioning method require at least two GNSS receivers working at the same time)' (and its accuracy depends on baseline length. On the other hand, the standard absolute positioning method)' (requires one only GNSS receiver, but it provides low accuracy. Since the RTS service provides real-time)' (corrections of the GNSS satellites orbit and clock, the RTPPP technique has appeared, which improved)' (significantly real-time positioning accuracy. This opens up the possibility of applying RTPPP to the)' (hydrography. We have tested the RTPPP technique at a section of Saigon River, Ho Chi Minh City,)' (Vietnam, and compared the results with RTK technique. The results show that the accuracy of the RTPPP in)' (East and North components are 0.26m and 0.17m respectively. This accuracy shows that the RTPPP)' (technique meets the requirement for the hydrographic surveying at a scale of 1:1000.)' ET /QuickPDFF7ef4aedb 10 Tf 0 0 0 rg BT 1 0 0 1 56.6929 150.7097 Tm 13.14 TL (__________________________________________________________________________________________)' ()' (Research on Application of RTPPP for the Hydrographic Surveying in Vietnam \(9909\))' (Pham Can and Nguyen Ngoc Lau \(Vietnam\))' ()' (FIG Working Week 2019)' (Geospatial information for a smarter life and environmental resilience)' (Hanoi, Vietnam, April 2226, 2019)' ET endstream endobj 6 0 obj << /Length 316 /Filter /FlateDecode >> stream xMRKnCAۿSpk`y^Uu[jIɒT%C/:b}Rx\%=
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