• Publications
  • Influence
The B4 Project: Scanning the San Andreas and San Jacinto Fault Zones
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Bridging GPS Gaps in Urban Canyons: Can ZUPT Really Help?
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Analysis of long-range network RTK during a severe ionospheric storm
The network-based GPS technique provides a broad spectrum of corrections to support RTK (real-time kinematic) surveying and geodetic applications. The most important among them are the ionosphericExpand
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Regional Ionosphere Mapping with Kriging and Multiquadric Methods
This paper demonstrates the concept and practical examples of instantaneous mapping of regional ionosphere, based on GPS observations from the State of Ohio continuously operating reference stationsExpand
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GPS error modeling and OTF ambiguity resolution for high-accuracy GPS/INS integrated system
Abstract. The Center for Mapping at The Ohio State University is currently developing a fully digital Airborne Integrated Mapping System (AIMS) for large-scale mapping and other precise positioningExpand
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On Improving Navigation Accuracy of GPS/INS Systems
Direct georeferencing, also referred to as direct platform orientation (DPO), is defined as direct measurement of the imaging sensor external orientation parameters (EOP), using positioning andExpand
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A Piecewise Approach to Epipolar Resampling of Pushbroom Satellite Images Based on RPC
Epipolar line determination and image resampling are important steps for stereo image processing. Unlike frame cameras that have well-known epipolar geometry, the pushbroom camera does not produceExpand
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Ionospheric detection of the 25 May 2009 North Korean underground nuclear test
[1] The total electron content (TEC) measurements of the Global Navigation Satellite System (GNSS) revealed traveling ionospheric disturbances (TID) that locate North Korea's underground nuclearExpand
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GPS-Challenged Environments: Can Collaborative Navigation Help?
This paper discusses the importance of the availability and continuity of position, navigation and timing (PNT) information, whose application scope and significance have exploded in the past 10-15 years. Expand
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