GPS profiling of the lower troposphere from space: Inversion and demodulation of the open-loop radio occultation signals

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

16

Atmospheric Processes: Remote Sensing, Atmospheric Processes: Instruments And Techniques, Radio Science: Remote Sensing, Radio Science: Signal Processing (0674), Radio Science: Instruments And Techniques (1241)

Scientific paper

Global Positioning System (GPS) radio occultation (RO) is a space-borne remote sensing technique providing accurate, all-weather, high vertical resolution atmospheric parameters, including pressure, temperature and humidity in the troposphere and stratosphere. In the moist lower troposphere (LT) RO encounters known problem related to the phase-locked loop (PLL) tracking technique applied in standard GPS receivers and the complicated structure of LT RO signals. This problem has been overcome by developing an open-loop (OL) tracking technique. This paper outlines post-processing of OL RO data. In order to invert OL RO signals, the GPS navigation data modulation (NDM) has to be removed in post-processing. This paper demonstrates that some tropical occultations are not accurately inverted (associated refractivity inversion errors exceed 5%) without the use of externally supplied NDM bit sequences. This result has important implications for the use of RO data from future RO missions for climate research and weather forecasting.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

GPS profiling of the lower troposphere from space: Inversion and demodulation of the open-loop radio occultation signals does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with GPS profiling of the lower troposphere from space: Inversion and demodulation of the open-loop radio occultation signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GPS profiling of the lower troposphere from space: Inversion and demodulation of the open-loop radio occultation signals will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1792217

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.