Monitoring water levels and currents using reflected GPS carrier doppler measurements and coordinate rotation model

Lie Chung Shen, Jyh Ching Juang, Ching Lang Tsai, Ching Liang Tseng

研究成果: Article同行評審

9 引文 斯高帕斯(Scopus)

摘要

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.

原文English
文章編號5208289
頁(從 - 到)153-163
頁數11
期刊IEEE Transactions on Instrumentation and Measurement
59
發行號1
DOIs
出版狀態Published - 2010 一月

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Electrical and Electronic Engineering

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