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RAW GNSS?
Figure 1: Android Nugat
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meaning?
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Existing API
Figure 2
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New Android Nugat API v24+
Figure 3
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A challenge
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It’s hardware stupid
Figure 4
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GNSS experts only?
Figure 5: Pseudoranges
Pseudorange is transmission time from satellite to the receiver:
L =T receiver
arrival− T
satellitetransmission
c 8
Matlab implementation
Google released Matlab code. . .
. . . but not python
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An opportunity
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Improved position
• using external corrections (DGPS)• reduce errors in urban areas (GNSS shadowing)• use sensor fusion• ect
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Mass market data
• data collection & analysis• position quality estimation• combining data• other DS tasks. . .
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Goal
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Creation of dedicated python library:
• abstracting calculations - we only want position• actively used for real-life problem
• DS• developers• scientists
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Useful link
• Google code• my gitHub with python code• my gitHub with edits to google code• Rokybun blog• BlackDotGNSS blog
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Take away notes
• Android RAW GNSS can improve position• Matlab implementation exist• python one does not• an opportunity to create python library
• multi-application• used across board
@LKBLab
https://github.com/DfAC
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