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A Graphical Approach to GPS Software-Defined Receiver Implementation
(2013)
Global positioning system (GPS) software-defined
receivers (SDRs) offer many advantages over their hardwarebased
counterparts, such as flexibility, modularity, and upgradability.
A typical GPS receiver is readily ...
Adaptive Estimation of Signals of Opportunity
(2014-04)
To exploit unknown ambient radio frequency signals of
opportunity (SOPs) for positioning and navigation, one
must estimate their states along with a set of parameters
that characterize the stability of their oscillators. ...
The Price of Anarchy in Active Signal Landscape Map Building
(2013)
Multiple receivers with a priori knowledge about
their own initial states are assumed to be dropped in an unknown
environment comprising multiple signals of opportunity (SOPs)
transmitters. The receivers draw pseudorange ...
Motion Planning for Optimal Information Gathering in Opportunistic Navigation Systems
(2013)
Motion planning for optimal information gathering in an opportunistic navigation (OpNav)
environment is considered. An OpNav environment can be thought of as a radio
frequency signal landscape within which a receiver ...
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 ...
Tightly-Coupled Opportunistic Navigation for Deep Urban and Indoor Positioning
(2011)
A strategy is presented for exploiting the frequency stability,
transmit location, and timing information of ambient radio-frequency “signals of opportunity” for the purpose of
navigating in deep urban and indoor ...
Observability Analysis of Opportunistic Navigation with Pseudorange Measurements
(2012-08)
Opportunistic navigation (OpNav) aims to extract positioning and timing information from ambient
radio-frequency “signals of opportunity” (SOPs). OpNav radio receivers continuously search for opportune
signals from which ...
Receding Horizon Trajectory Optimization for Simultaneous Signal Landscape Mapping and Receiver Localization
(2013)
A receiver with no a priori knowledge about its own states
is dropped in an unknown environment comprising multiple
signals of opportunity (SOPs) transmitters. Assuming
that the receiver could control its maneuvers in ...
Observability and Estimability of Collaborative Opportunistic Navigation with Pseudorange Measurements
(2012)
The observability and estimability of collaborative opportunistic
navigation (COpNav) environments are studied.
A COpNav environment can be thought of as a radio frequency
signal landscape within which one or more ...