Open research on smartphone positioning, GNSS & spatial memory.
In-depth technical papers covering satellite telemetry, carrier phase tracking, geodetic post-processing formats, and the long-term value of personal spatial archives.
Decoding Android Raw GNSS: Pseudoranges, Clock Drift & Carrier Phase
How Android's GnssMeasurement API exposes raw satellite carrier signals, hardware clock bias, pseudorange rate, and Accumulated Delta Range (ADR) states.
GEODETIC FORMATS • PAPER 02Beyond Standard GPX: Why RINEX 3.04 Matters for Geodesy
Why standard GPX polylines are insufficient for sub-meter positioning, and how the RINEX 3.04 observation format enables post-processing kinematic (PPK) corrections.
POSITIONING HORIZON • PAPER 03The Sub-Meter Horizon: RTK, PPP & Galileo High Accuracy Service (HAS)
An architectural analysis of Real-Time Kinematic (RTK), Precise Point Positioning (PPP), and satellite-broadcast Galileo HAS corrections on modern smartphone chipsets.
SPATIAL MEMORY • PAPER 04The Long-Term Value of Spatial Memory: Personal Location Archives
Why longitudinal trajectory data is an irreplaceable human record, and how local AI agents will query years of movement history with complete privacy.