This paper analyzes the feasibility of Global Positioning System (GPS) L2C signals for use with space service volume (SSV) receiver on satellite-based augmentation system (SBAS) geostationary orbit (GEO) satellites equipped L1 and L5 band signal transmitters. Augmentation transmitted at bands from SBAS GEO may interfere same SSV GPS-receiving antennas. Therefore, GPS is prohibited, selected. Un...

Mapping deformation field time-series, including vertical and horizontal motions, is vital for landslide monitoring and slope safety assessment. However, the conventional differential synthetic aperture radar interferometry (DInSAR) technique can only detect the displacement component in the satellite-to-ground direction, i.e., line-of-sight (LOS) direction displacement. To overcome this constr...

Likewise other Satellite Based Augmentation Systems (SBAS), EGNOS– the European SBAS – will broadcast augmentation signals for GPS through Geostationary Earth Orbit (GEO) satellites. GEO broadcasting is proved to be an efficient strategy for avionic applications and other modes of transport. For some applications, though, it may be of interest to complement GEO broadcasting through other transm...

BACKGROUND Kenya's high maternal mortality ratio can be partly explained by the low proportion of women delivering in health facilities attended by skilled birth attendants (SBAs). Many women continue to give birth at home attended by family members or traditional birth attendants (TBAs). This is particularly true for pastoralist women in Laikipia and Samburu counties, Kenya. This paper investi...

Single-frequency based Satellite-Based Augmentation Systems (SBAS), the augmentation of the Global Navigation Satellite System (GNSS), broadcast estimates of vertical ionospheric delays and confidence bounds on the delay errors at Ionospheric Grid Points (IGPs). Using an ionospheric irregularity undersampled threat model, the integrity bounds, called Grid Ionospheric Vertical Errors (GIVEs), mu...

This textbook, published in 2008, gives advice to Final Year students applying for the National Foundation Training Programme for F1 and F2 doctors. The problems with this application process over the past several years are well known to senior students, junior doctors, programme directors, postgraduate Deans, universities, the public and indeed politicians. This book is timely and is an effort...

This paper describes a set of MATLAB functions currently being developed for SBAS availability analysis. This toolset includes simulation algorithms that are constantly being developed and updated by various working groups. This set of functions is intended for use as a fast, accurate, and highly customizable experimental test bed for algorithm development. A user-friendly interface has also be...

R. Eric Phelts, Ph.D., is a research engineer in the Department of Aeronautics and Astronautics at Stanford University. He received his B.S. in Mechanical Engineering from Georgia Institute of Technology in 1995, and his M.S. and Ph.D. in Mechanical Engineering from Stanford University in 1997 and 2001, respectively. His research involves signal deformation monitoring techniques and analysis fo...