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On the Feasibility of cm-Accurate Positioning via a Smartphone’s Antenna and GNSS Chip
(2016-04)
The feasibility of centimeter-accurate carrier-phase
differential GNSS (CDGNSS) positioning using a smartphone’s
internal GNSS antenna and GNSS chip is investigated. Precise positioning
on a mass-market platform would ...
Low-Cost Precise Urban Positioning
(2016-09-14)
Precise Augmented Reality Enabled by Carrier-Phase Differential GPS
(2012)
A prototype precise augmented reality (PAR) system
that uses carrier phase differential GPS (CDGPS)
and an inertial measurement unit (IMU) to obtain
sub-centimeter level accurate positioning and degree
level accurate ...
Opportunistic Frequency Stability Transfer for Extending the Coherence Time of GNSS Receiver Clocks
(2010)
A framework is presented for exploiting the frequency stability
of non-GNSS signals to extend the coherence time
of inexpensive GNSS receiver clocks. This is accomplished
by leveraging stable ambient radio frequency ...
Precision Limits of Low-Energy GNSS Receivers
(2013)
Limitations on position-time precision are analyzed in
energy-constrained GNSS receivers. The goal of this work
is to determine the combination of sampling rate, number
of quantization bits, number of satellites tracked, ...
Constructing a Continuous Phase Time History from TDMA Signals for Opportunistic Navigation
(2012-04)
A technique is developed for reconstructing a continuous
phase time history from the noncontinuous phase bursts
of time division multiple access (TDMA) signals. A continuous
phase time history facilitates exploitation ...
Centimeter Positioning with a Smartphone-Quality GNSS Antenna
(2014-09)
This paper demonstrates for the first time that centimeteraccurate
positioning is possible based on data sampled
from a smartphone-quality Global Navigation Satellite
System (GNSS) antenna. Centimeter-accurate ...