TY - JOUR
T1 - Monitoring water levels and currents using reflected GPS carrier doppler measurements and coordinate rotation model
AU - Shen, Lie Chung
AU - Juang, Jyh Ching
AU - Tsai, Ching Lang
AU - Tseng, Ching Liang
N1 - Funding Information:
Manuscript received July 13, 2008; revised December 30, 2008. First published August 18, 2009; current version published December 9, 2009. This work was supported in part by the National Science Council, Taiwan, under Grant 96-2628-E-006-246-MY2. The Associate Editor coordinating the review process for this paper was Dr. Samir Trabelsi.
PY - 2010
Y1 - 2010
N2 - This paper describes the development and application of a highly integrated Global Positioning System (GPS) receiver that employs reflected GPS signals to measure the flood-water levels, sea levels, and soil moisture of riverbeds. Both right- and left-hand circular polarization antennas are employed to simultaneously obtain direct and reflected signals. The objective of this paper is to use the carrier-phase Doppler shifts reflectivity of L1 and L2 band reflected signals and direct signals to determine the floodwater and sea levels in riverbeds, as well as to distinguish wet soil from bare soil. In monitoring coastal tidal currents, water levels, and floodwater levels, the reflection heights of this system are accurate to within 29 ∼ 31 cm. Furthermore, the currents at reflection points are estimated using differential carrier Doppler shifts and a coordinate rotation correction model, which provide velocity vectors for flows speed of approximately 5 ∼ 265 cm/s.
AB - This paper describes the development and application of a highly integrated Global Positioning System (GPS) receiver that employs reflected GPS signals to measure the flood-water levels, sea levels, and soil moisture of riverbeds. Both right- and left-hand circular polarization antennas are employed to simultaneously obtain direct and reflected signals. The objective of this paper is to use the carrier-phase Doppler shifts reflectivity of L1 and L2 band reflected signals and direct signals to determine the floodwater and sea levels in riverbeds, as well as to distinguish wet soil from bare soil. In monitoring coastal tidal currents, water levels, and floodwater levels, the reflection heights of this system are accurate to within 29 ∼ 31 cm. Furthermore, the currents at reflection points are estimated using differential carrier Doppler shifts and a coordinate rotation correction model, which provide velocity vectors for flows speed of approximately 5 ∼ 265 cm/s.
UR - https://www.scopus.com/pages/publications/72349100137
UR - https://www.scopus.com/pages/publications/72349100137#tab=citedBy
U2 - 10.1109/TIM.2009.2022113
DO - 10.1109/TIM.2009.2022113
M3 - Article
AN - SCOPUS:72349100137
SN - 0018-9456
VL - 59
SP - 153
EP - 163
JO - IEEE Transactions on Instrumentation and Measurement
JF - IEEE Transactions on Instrumentation and Measurement
IS - 1
M1 - 5208289
ER -