Application of RTK-GPS to Immersion of Caisson

Okamoto, Osamu; Tsuboi, Hiromi; Namie, Hiromune; Yasuda, Akio

doi:10.1007/978-3-662-03482-8_93

Cited by 5 publications

(3 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The system is easier to operate than a traditional survey system such as the 'Total Station'. Many applications of RTK-GPS have been investigated in Japan (Namie et al, 1996(Namie et al, , 1999.…”

Section: Introductionmentioning

confidence: 99%

RTK-GPS positioning by TV audio-MPX-data broadcast in Japan

2014

Self Cite

View full text Add to dashboard Cite

RTK-GPS is a satellite positioning system which provides instant and accurate positions. The ranging error to the satellite from a user GPS antenna determined by the phase measurement of the carrier waves from the GPS satellites is of the order of mms. Thus an accuracy of a few cm can be easily obtained. The system is easier to operate than a traditional survey system such as the 'Total Station'. Hence it has been used for many applications in Japan. It is necessary, however, to provide a fast data communication link for the transmission of carrier phase data from a reference station located at a known position, to a user receiver. A radio communication device with low power, is commonly used because it requires no license. However the data transmission area is generally limited to just several hundred meters in radius from the reference station. The authors have investigated RTK-GPS positioning with several different lengths of baseline using data transmission via TV audio-MPX-data broadcast, and evaluated its validity. The carrier phase data is transmitted from the reference receiver at the Tokyo University of Mercantile Marine, to the experimental station of the Asahi National Broadcasting Company, by public phone line with data rate 9,600 bps. The data, which when multiplexed into TV audio, was then disseminated with the rate of about 8 kbps from the Tokyo Tower. The data transmission delay in this system appeared random between 0.740 and 1.317 s, of which the difference (0.577 s) corresponds to the transmission time of 32 blocks of multiplexed data. Positioning was tried at several fixed points with different lengths of baseline (0-21 km). Tests proved that the accuracy became worse as the length of baselines became longer. The 2drms height are less than the 2.5 cm, and 'Fix' solution success rates are more than 98 %, for shorter baselines less than 10 km in length.

show abstract

Section: Introductionmentioning

confidence: 99%

RTK-GPS positioning by TV audio-MPX-data broadcast in Japan

2014

Self Cite

View full text Add to dashboard Cite

show abstract

“…Thus, the horizontal and vertical positions of an object can be determined to within 1 to 4 cm. This system is easier to operate than a conventional survey system, such as "Total Station," and numerous applications of RTK-GPS have been investigated [1]- [14]. Although RTK-GPS positioning has numerous benefits, the system has some usability problems.…”

Section: Introductionmentioning

confidence: 99%

Development of a Network-Based RTK-GPS Positioning System using FKP via the Internet

Namie

Okamoto

Fan

et al. 2010

JIPNTJ

Self Cite

View full text Add to dashboard Cite

Real-time kinematic GPS (RTK-GPS) is a real-time satellite positioning system. Using RTK-GPS, the horizontal and vertical positions of an object can be determined to within a few centimeters. However, Japan currently lacks the essential infrastructure to support the consistent delivery of data. The authors developed and tested a FKP-method network-based RTK-GPS (FKP-RTK) positioning using the area correction parameter (FKP) via the Internet. We studied FKP-RTK positioning at a fixed point, while varying the position of the GPS reference station located inside the station network area. Both the precision and accuracy of the FKP-RTK positioning were confirmed to be independent of the position of the primary GPS reference station (PRS). Using an Internet line, as compared with a public phone line, comparable results were achieved. The degradation in positioning precision when compared to RTK-GPS positioning (non network-based) is not especially pronounced, and we can see that the results of the network-based RTK-GPS positioning correction results are high.

show abstract

“…The system is easier to operate than a traditional survey system such as "Total Station." Many applications of the RTK-GPS have been investigated in Japan [1,2].…”

Section: Introductionmentioning

confidence: 99%

Development and experimental study of a network‐based RTK‐GPS positioning system using a satellite communication line

Namie

Okamoto

Fan

et al. 2006

Electron. Comm. Jpn. Pt. I

Self Cite

View full text Add to dashboard Cite

SUMMARYThe geostationary satellite system will be able to disseminate data to a wider area and a greater number of users simultaneously. The authors tested the network-based RTK-GPS positioning using the area correction parameter (FKP) via the geostationary satellite-based communication line. They investigated network-based RTK-GPS positioning at several fixed points located inside the GPS reference station network area.

show abstract

Application of RTK-GPS to Immersion of Caisson

Cited by 5 publications

References 2 publications

RTK-GPS positioning by TV audio-MPX-data broadcast in Japan

RTK-GPS positioning by TV audio-MPX-data broadcast in Japan

Development of a Network-Based RTK-GPS Positioning System using FKP via the Internet

Development and experimental study of a network‐based RTK‐GPS positioning system using a satellite communication line

Contact Info

Product

Resources

About