Applications of an integrated GPS receiver for reflected GPS signals L1/L2 observation techniques with river's stream flow and water altimetry

Lie Chung Shen, Jyh-Chin Juang, Ching Lang Tsal, Ching Liang Tseng, Chan Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The paper is intended to describe relationships of reflected GPS signals and environmental effect factors. An altitude iteration loop into least-squares searching for receiver position was modified and enhanced by giving 4 or more pseudoranges and ephemeredes and zooming on the plot to detect the search partern 1. The software is developed using Matlab tools, which can display results of the reflected surface area altitude in real time. For the reflected signal application, it has been proven that a GPS receiver cannot smoothly detect reflected signals because under the underground base receiver system cannot smoothly receive the reflected signals which are weak and discontinuously reflected. This problem negatively impacts and reduces application of reflected signals. At mean LHCP/RHCP receiver positions with solution of instantaneous ambiguity by condition, the values of moving position relative of mean receiver position by altitude, north and east with Is latency are among -0.5 m and 0.5 m with L1/L2 SNR and atmospheric delays. The Design of an integrated receiver system permits smooth reception of the signals reflected by the water or ground. A rapid resolution altimetry and stream flow method was developed by using surface elevations spectrum with the elevation angle and line of sight theory in the reflecting geometry and atmospheric corrections with ambiguity solution. A estimation of stream flow formula method was developed by using 10 Hz Ll/L2 observations of LHCP/RHCP Receiver and Instantaneous Troposphere delay derived method.

Original languageEnglish
Title of host publication63rd Annual Meeting of the Institute of Navigation 2007
Pages340-345
Number of pages6
Publication statusPublished - 2007 Aug 23
Event63rd Annual Meeting of the Institute of Navigation 2007 - Cambridge, MA, United States
Duration: 2007 Apr 232007 Apr 25

Publication series

NameProceedings of the Annual Meeting - Institute of Navigation

Other

Other63rd Annual Meeting of the Institute of Navigation 2007
CountryUnited States
CityCambridge, MA
Period07-04-2307-04-25

All Science Journal Classification (ASJC) codes

  • Transportation
  • Aerospace Engineering

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    Shen, L. C., Juang, J-C., Tsal, C. L., Tseng, C. L., & Chang, C. (2007). Applications of an integrated GPS receiver for reflected GPS signals L1/L2 observation techniques with river's stream flow and water altimetry. In 63rd Annual Meeting of the Institute of Navigation 2007 (pp. 340-345). (Proceedings of the Annual Meeting - Institute of Navigation).