Abstract
The purpose of this study is to use the software of MATLAB for processing the direct and reflected signals of GPS to monitor altitude of water surface in the water flume, as well as to establish a practicable technique of measuring sea water level. It is because before determining water wave pattern, the feasibility and accuracy of reflected GPS method must be proved.Therefore, there was a field test in the Mid-size wave flume of the Tainan Hydraulics Laboratory, National Cheng Kung University. After improving RGPS positioning procedure, the tranquil water level and the steadily descending of water level observation for one hour were performed. In this research, an integrated GPS receiver that employed direct and reflected GPS signals for the measurement was introduced. Both RHCP and LHCP antennas were employed to simultaneously receive the L1 and L2 carrier phase of direct and reflected signals. After the data analysis of the GPS observation, the position of signal reflection and the water level of the wave were solved. The results of the RGPS, wave gauge, and staff meter were coincided within 0.5cm ~ 1.0 cm. The differences between the reflection heights of this GPS system and the record of wave gauge were almost identical within 90%. It is proved the reflected GPS technique is possible to monitor water surface altitude and determine water wave patterns.
| Original language | English |
|---|---|
| Title of host publication | Information, Communication and Engineering |
| Pages | 67-72 |
| Number of pages | 6 |
| DOIs | |
| Publication status | Published - 2013 Mar 19 |
| Event | 2012 International Conference on Information, Communication and Engineering, ICICE 2012 - Fuzhou, Taiwan Duration: 2012 Dec 15 → 2012 Dec 20 |
Publication series
| Name | Applied Mechanics and Materials |
|---|---|
| Volume | 311 |
| ISSN (Print) | 1660-9336 |
| ISSN (Electronic) | 1662-7482 |
Other
| Other | 2012 International Conference on Information, Communication and Engineering, ICICE 2012 |
|---|---|
| Country | Taiwan |
| City | Fuzhou |
| Period | 12-12-15 → 12-12-20 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
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Using MATLAB for processing RGPS data to determine the altitude of water surface. / Hsu, Po Hsien; Shen, Lie Chung; Tseng, Ching Liang; Lee, Jaw-Fang; Liu, Ding Yu.
Information, Communication and Engineering. 2013. p. 67-72 (Applied Mechanics and Materials; Vol. 311).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Using MATLAB for processing RGPS data to determine the altitude of water surface
AU - Hsu, Po Hsien
AU - Shen, Lie Chung
AU - Tseng, Ching Liang
AU - Lee, Jaw-Fang
AU - Liu, Ding Yu
PY - 2013/3/19
Y1 - 2013/3/19
N2 - The purpose of this study is to use the software of MATLAB for processing the direct and reflected signals of GPS to monitor altitude of water surface in the water flume, as well as to establish a practicable technique of measuring sea water level. It is because before determining water wave pattern, the feasibility and accuracy of reflected GPS method must be proved.Therefore, there was a field test in the Mid-size wave flume of the Tainan Hydraulics Laboratory, National Cheng Kung University. After improving RGPS positioning procedure, the tranquil water level and the steadily descending of water level observation for one hour were performed. In this research, an integrated GPS receiver that employed direct and reflected GPS signals for the measurement was introduced. Both RHCP and LHCP antennas were employed to simultaneously receive the L1 and L2 carrier phase of direct and reflected signals. After the data analysis of the GPS observation, the position of signal reflection and the water level of the wave were solved. The results of the RGPS, wave gauge, and staff meter were coincided within 0.5cm ~ 1.0 cm. The differences between the reflection heights of this GPS system and the record of wave gauge were almost identical within 90%. It is proved the reflected GPS technique is possible to monitor water surface altitude and determine water wave patterns.
AB - The purpose of this study is to use the software of MATLAB for processing the direct and reflected signals of GPS to monitor altitude of water surface in the water flume, as well as to establish a practicable technique of measuring sea water level. It is because before determining water wave pattern, the feasibility and accuracy of reflected GPS method must be proved.Therefore, there was a field test in the Mid-size wave flume of the Tainan Hydraulics Laboratory, National Cheng Kung University. After improving RGPS positioning procedure, the tranquil water level and the steadily descending of water level observation for one hour were performed. In this research, an integrated GPS receiver that employed direct and reflected GPS signals for the measurement was introduced. Both RHCP and LHCP antennas were employed to simultaneously receive the L1 and L2 carrier phase of direct and reflected signals. After the data analysis of the GPS observation, the position of signal reflection and the water level of the wave were solved. The results of the RGPS, wave gauge, and staff meter were coincided within 0.5cm ~ 1.0 cm. The differences between the reflection heights of this GPS system and the record of wave gauge were almost identical within 90%. It is proved the reflected GPS technique is possible to monitor water surface altitude and determine water wave patterns.
UR - http://www.scopus.com/inward/record.url?scp=84874974947&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84874974947&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMM.311.67
DO - 10.4028/www.scientific.net/AMM.311.67
M3 - Conference contribution
SN - 9783037856727
T3 - Applied Mechanics and Materials
SP - 67
EP - 72
BT - Information, Communication and Engineering
ER -