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Conference Paper
Development and Testing of a Minaturized, Dual-Frequency GPS Receiver for Space Applications
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Todd Humphreys
2012
Conference Paper
Presentation
Tightly-Coupled Opportunistic Navigation for Deep Urban and Indoor Positioning
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Jahshan Bhatti
Ken Pesyna Jr
Todd Humphreys
Zak Kassas
2011
Conference Paper
Characterization of Receiver Response to Spoofing Attacks
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Daniel Shepard
Todd Humphreys
2011
Conference Paper
An Evaluation of the Vestigial Signal Defense for Civil GPS Anti-Spoofing
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Daniel Shepard
Jahshan Bhatti
Kyle Wesson
Todd Humphreys
2011
Conference Paper
A Proposed Navigation Message Authentication Implementation for Civil GPS Anti-Spoofing
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Kyle Wesson
Todd Humphreys
2011
Conference Paper
Civilian GPS Spoofing Detection based on Dual-Receiver Correlation of Military Signals
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Brady O'Hanlon
Daniel Shepard
Jahshan Bhatti
Mark Psiaki
Todd Humphreys
2011
Conference Paper
Signal Characteristics of Civil GPS Jammers
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Brady O'Hanlon
Jahshan Bhatti
Mark Psiaki
Todd Humphreys
2011
Conference Paper
CASES: A Smart, Compact GPS Software Receiver for Space Weather Monitoring
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Brady O'Hanlon
Jahshan Bhatti
Mark Psiaki
Todd Humphreys
2011
Conference Paper
CASES: A Novel Low-Cost Ground-based Dual-Frequency GPS Software Receiver and Space Weather Monitor
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Brady O'Hanlon
Jahshan Bhatti
Mark Psiaki
Todd Humphreys
2011
Conference Paper
Extending the Reach of GPS-assisted Femtocell Synchronization and Localization Through Tightly-Coupled Opportunistic Navigation
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Ken Pesyna Jr
Kyle Wesson
Todd Humphreys
2011
Conference Paper
Presentation
Video Presentation
The GPS Assimilator: a Method for Upgrading Existing GPS User Equipment to Improve Accuracy, Robustness, and Resistance to Spoofing
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Brent Ledvina
Jahshan Bhatti
Todd Humphreys
2010
Conference Paper
Presentation
Opportunistic Frequency Stability Transfer for Extending the Coherence Time of GNSS Receiver Clocks
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Jahshan Bhatti
Ken Pesyna Jr
Kyle Wesson
Todd Humphreys
2010
Conference Paper
Presentation
Development and Field Testing of a DSP-Based Dual-Frequency Software GPS Receiver
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Brady O'Hanlon
Mark Psiaki
Paul Kintner Jr
Todd Humphreys
2009
Conference Paper
Receiver-Autonomous Spoofing Detection: Experimental Results of a Multi-antenna Receiver Defense Against a Portable Civil GPS Spoofer
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Brent Ledvina
Todd Humphreys
2009
Conference Paper
Evaluating GPS Receiver Robustness to Ionospheric Scintillation
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Brady O'Hanlon
Mark Psiaki
Paul Kintner Jr
Todd Humphreys
2008
Conference Paper
Assessing the Spoofing Threat: Development of a Portable GPS Civilian Spoofer
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Brady O'Hanlon
Brent Ledvina
Mark Psiaki
Paul Kintner Jr
Todd Humphreys
2008
Conference Paper
Considerations for Future IGS Receivers
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Todd Humphreys
2008
Conference Paper
A Technique for Determining the Carrier Phase Differences between Independent GPS Receivers during Scintillation
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Mark Psiaki
Todd Humphreys
2007
Conference Paper
Searching for Galileo
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Mark Psiaki
Paul Kintner Jr
Todd Humphreys
2006
Conference Paper
GNSS Receiver Implementation on a DSP: Status, Challenges, and Prospects
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Brent Ledvina
Mark Psiaki
Paul Kintner Jr
Todd Humphreys
2006
Conference Paper
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