Mitigation of Continuous and Pulsed Radio Interference with GNSS Antenna Arrays (2008)
Konovaltsev, Andriy, De Lorenzo, David S., Hornbostel, Achim, Enge, Per
A number of antenna array techniques for radio interference mitigation in GNSS receivers have been intensively studied in the last two decades showing that space-only or space-time adaptive...
Failure Detection and Exclusion via Range Consensus (2008)
Schroth, Georg, Ene, Alexandru, Blanch, Juan, Walter, Todd, Enge, Per
With the rise of enhanced GNSS services over the next decade (i.e. the modernized GPS, Galileo, GLONASS, and Compass constellations), the number of ranging sources (satellites) available for a...
Enhancements of the Range Consensus Algorithm (RANCO) (2008)
Schroth, Georg, Rippl, Markus, Ene, Alexandru, Blanch, Juan, Belabbas, Boubeker, Walter, Todd, ...
In anticipation of the future GNSS constellations becoming operational, it will no longer be possible to assume that the probability of failure for more than one satellite within a certain timeframe...
An Integrity Equation For Use With Space Based Augmentation Systems (2007)
Todd Walter Per, Todd Walter, Per Enge, Andrew Hansen
In recent years there has been widespread growth in the number of proposed Space Based Augmentation Systems (SBAS). Such systems are being developed by both civil authorities and commercial...
Richard Fuller, Donghai Dai, Todd Walter, Christopher Comp, Per Enge, J. David Powell
In recent years there has been widespread growth in the
Worcester Polytechnic Institute. (2007)
Andrew K. Barrows, Per Enge, Bradford W. Parkinson, J. David Powell
University. He is a private pilot and received his S.B. and S.M. degrees from the Massachusetts Institute of Technology, where his Master’s thesis focused on realtime flight planning systems for...
Abstract Weighted RAIM for Precision Approach (2007)
The use of differential GPS is becoming increasingly popular for real-time navigation systems. As these systems migrate to safety-of-life applications (e.g. precision approach and landing), their...
A Comprehensive Integrity Verification Architecture for OnAirport (2007)
Sam Pullen, Boris Pervan, Per Enge, Bradford Parkinson
where he is now a Research Associate. His research includes spacecraft design for reliability and robust control design along with studies of aircraft DGPS performance and integrity.
Richard Fuller, Todd Walter, Sharon Houck, Per Enge
Several flight demonstrations have taken place over the past few years to show how the Wide-Area Augmentation System (WAAS), currently under development for the Federal Aviation Administration, will...
Flight Test Evaluation of a Prototype Local Area Augmentation System Architecture (2007)
Boris Pervan, David Lawrence, Konstantin Gromov, Guttorm Opshaug, Jock Christie, Ping-ya Ko, ...
A Local Area Augmentation System (LAAS) architecture alternative has been developed to provide satellite navigation performance compliant with the stringent requirements for aircraft precision...
Demoz Gebre-egziabher, Sherman C. Lo, J. David Powell, Per Enge
the faculty for 25 years. His research deals with land, air, and space vehicle navigation and control. He is a coauthor of two control system text books.
Development, Implementation, and Testing of a Prototype LAAS Architecture (2007)
Boris S. Pervan, Samuel P. Pullen, David G. Lawrence, Konstantin Gromov, Jock Christie, Guttorm Opshaug, ...
Abstract: A Local Area Augmentation System (LAAS) architecture has been developed to provide satellite navigation performance compliant with the stringent requirements for aircraft precision approach...
Andrew K. Barrows, Per Enge, Bradford W. Parkinson, J. David Powell
University. He is a private pilot and received his S.B. and S.M. degrees from the Massachusetts Institute of Technology, where his Master’s thesis focused on realtime flight planning systems for...
Tesing of Adaptive Beamsteering for Interference Rejection in GNSS Receivers (2007)
De Lorenzo, David S., Antreich, Felix, Denks, Holmer, Hornbostel, Achim, Weber, Christian, Enge, Per
In this work space-time adaptive processing algorithms for interference rejection in a GNSS receiver are tested under experimental conditions with recorded signals generated by a powerful hardware...
Robust Detection of Ionospheric Irregularities (2000)
Todd Walter, Andrew Hansen, Juan Blanch, Per Enge, Tony Mannucci, Xiaoqing Pi, ...
provide real-time differential GPS corrections and integrity information for aircraft navigation use. The most stringent application of this system will be precision approach, where the system guides...
GPS Software Radio. Direct RF Sampling Research (1998)
The future satellite positioning navigation systems will provide civil signals on multiple frequencies, similar to that currently available only for the military pie. The multiple distinct...
Demonstration Of Waas Aircraft Approach And Landing In Alaska (1998)
Christopher Comp, Todd Walter, Richard Fuller, Andrew Barrows, Keith Alter, Demoz Gebre, ...
In August of 1998, a team of Stanford researchers demonstrated the e#ectiveness of the Wide Area Augmentation System #WAAS# to guide aircraft through precision approaches in Alaska. The #ight trials...
Ionospheric correction using tomography (1997)
Andrew J. Hansen, Todd Walter, Per Enge
The most demanding application of wide area di erential corrections to GPS is vertical positioning of aircraft on precision approach. Here the Wide Area Augmentation System (WAAS) combines accuracy...
A Proposed Integrity Equation for WAAS MOPS (1997)
Todd Walter Per, Todd Walter, Per Enge, Andrew Hansen
In recent years there has been widespread growth in the number of proposed differential augmentation systems for GPS. Such systems are being developed by both civil authorities and commercial...