Survey of the “ipexSR” Software Receiver
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Thomas Pany, IGS Workshop 2008 Survey of the “ipexSR” Software Receiver • High end, multi-frequency, real- time capable • Tracks civil signals coming from all-in-view GPS / Galileo / SBAS satellites • User code (C or MATLAB) can be used at all levels • Input IF samples from - triple frequency (L1 or E1, L2, L5 or E5a) USB Front-End (real- time processing) - recorded data files (post- processing) - single frequency L1 frontend • Measurement accuracy levels - < 30 cm for code measurements - ~1 mm for carrier phase GNSS SDR Technology
description
GNSS SDR Technology. Survey of the “ipexSR” Software Receiver. High end, multi-frequency, real-time capable Tracks civil signals coming from all-in-view GPS / Galileo / SBAS satellites User code (C or MATLAB) can be used at all levels Input IF samples from - PowerPoint PPT Presentation
Transcript of Survey of the “ipexSR” Software Receiver
Thomas Pany, IGS Workshop 2008
Survey of the “ipexSR” Software Receiver • High end, multi-frequency, real-time capable
• Tracks civil signals coming from all-in-view GPS / Galileo / SBAS satellites
• User code (C or MATLAB) can be used at all levels
• Input IF samples from - triple frequency (L1 or E1, L2, L5 or E5a)
USB Front-End (real-time processing)- recorded data files (post-processing)- single frequency L1 frontend
• Measurement accuracy levels - < 30 cm for code measurements- ~1 mm for carrier phase measurements
GNSS SDR Technology
Thomas Pany, IGS Workshop 2008
Double Difference Correlator Values
GNSS SDR Technology
•Provide complex prompt correlator values for post-processing
•Form double differences at correlator level
•Do carrier phase tracking at double difference level
•Expected improvement: 6-20 dB
tPTtitP trkcoh ̂exp
tPtPtPtPtP lm
km
ln
kn
RINEX carrier phase
