Tsung-Yu Chiou

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The Phase-Locked Loop (PLL) is a key component of modern electronic communication and control systems. PLL is designed to extract signals from transmission channels. It plays an important role in systems where it is required to estimate the phase of a received signal, such as carrier tracking from global positioning system satellites. In order to robustly(More)
Aircraft navigation based on GPS (Global Positioning System) and WAAS (Wide Area Augmentation System) requires both code and carrier measurements to calculate the position estimate [1]. A GPS receiver's carrier tracking loop is weaker than code tracking loop. Thus, carrier lock can more easily be broken under deep signal fading caused by ionospheric(More)
BIOGRAPHY Tsung-Yu Chiou is a Ph.D. candidate in the Aeronautics and Astronautics Department at Stanford University. He received his B.S. in Aerospace Engineering in 1998 from Tamkang University, Taiwan and his M.S. from Stanford in 2002. His research currently focuses on the performance analysis and validation of Inertial-aided GPS carrier-tracking loops.(More)
research involves the development of a low-cost GPS/INS attitude systems, and deep integration of INS systems with GPS ttracking loops. research and development and is now the LAAS project leader. His work in these fields and his support of the Professor Enge's research focuses on the design of navigation systems which satisfy stringent requirements with(More)
  • Grace Xingxin Gao, Doug Archdeacon, Dana Parga, Sherann Ellsworth, Dennis Akos, Juan Blanch +28 others
  • 2008
Global Navigation Satellite Systems (GNSS) are experiencing a new era. The US Global Positioning System (GPS) now serves over 300 million users in a bewildering breadth of applications. The Russian GLONASS is enjoying a startling renaissance based on the recovery of the Russian economy. In addition, the European Union is developing the Galileo system that(More)
Samsung Lee Kun Hee Graduate Fellowship for five years. His current research focuses on aircraft navigation using GPS and WAAS under severe ionospheric scintillation of the equatorial region. Stanford and works on developing WAAS integrity algorithms and analyzing the follow on systems to WAAS. He is a fellow of the ION. His research currently focuses on(More)
  • Seebany Datta-Barua, Walter Todd, Doug Archdeacon, Sherann Ellsworth, Dana Parga, Lynn Kaiser +57 others
  • 2008
ii I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. I certify that I(More)
The ionosphere has practical importance in GPS (Global Positioning System) applications because it influences transionospheric radio wave propagation. Among various phenomena in the ionosphere, ionospheric scintillation is characterized by rapid fluctuation and fading of the received signal intensity due to electron density irregularity inside the(More)
  • Jiwon Seo, David Powell, Mentors Professors, Dennis Akos, Seebany Datta-Barua, Shau-Shiun Jan +33 others
  • 2010
Together, the Global Positioning System (GPS) and the Wide Area Augmentation System (WAAS) can guide aircraft down to 200 ft above the runway. This approach procedure is referred to as Localizer Performance with Vertical guidance (LPV)-200. Approach guidance using GPS and WAAS has many advantages over traditional precision approach guidance using the(More)