Sergey G. Revnivykh is a deparment head at JSC ISS Reshetnev, which manufactures GLONASS satellites. Until September 2013 he served as the director of the Satellite Navigation Department in the Mission Control Center for the Russian Federal Space Agency. He studied space flight dynamics and control at the Technical University Moscow Aviation Institute “Sergo Ordzhonikidze.”

Beginning in 1978 Revnivykh worked for the space flight mission control center of the Central Research Institute of Machine Building (TsNIImash), the main research institute of the Federal Space Agency (Roscosmos). Since 1995, he has led national and international projects in satellite navigation on behalf of Roscosmos. In 1999-2000, Revnivykh was a consultant for the European Space Agency (ESA) on the Galileo team at the European Space Research and Technology Center in Noordwijk, Netherlands.

Revnivykh was one of the developers of the Russian Federal Mission Oriented Program “Global Navigation System” approved by the federal government in 2001, which was primarily dedicated to sustaining and developing the GLONASS system. At TsNIImash, he led both the GLONASS programmatic support team of Roscosmos and the Information Analysis Center of Positioning, Navigation, and Time.

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He is president of the International Association of Geodesy.

Chris Rizos heads the School of Surveying and Spatial Information Systems at University of New South Wales, Sydney, Australia. He founded the university’s Satellite Navigation and Positioning (SNAP) Lab, Australia’s premier academic GNSS and wireless positioning research group.

He is president of the International Association of Geodesy.

Rizos has been researching the technology and high precision applications of GPS since 1985. He has published over 200 papers, and is the author or coauthor of several books on GPS and positioning technologies.

Rizos is a fellow of the Insitute of Navigation and the International Association of Geodesy (IAG), He is a member of the executive committee of the ION Satellite Division, the governing board of the International GNSS Service, and on the Australian GNSS Coordination Committee.

He graduated from the University of New South Wales (UNSW), obtaining a bachelor of surveying and a Ph.D. in satellite geodesy.

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He is a Kalman filter expert with a long history as a GPS navigation performance analyst and spacecraft mission planner. He has worked on GPS Block I, Block II, IIA, IIF and IIR satellite projects.

John V. "Jack" Taylor is Boeing senior systems engineer, GPS Operations Support, at Schriever Air Force Base in Colorado.

He is a Kalman filter expert with a long history as a GPS navigation performance analyst and spacecraft mission planner. He has worked on GPS Block I, Block II, IIA, IIF and IIR satellite projects.

Jack Taylor began his GPS engineering career in 1987 as a United States Air Force officer working on Block I and Block II satellites at Falcon Air Force Station (now Schriever AFB).

He specialized in Kalman filter optimization and GPS-INS integration sequences as a doctoral student in astronautical engineering at the Air Force Institute of Technology, where he had received a master’s degree in astronautical engineering.

After retiring from the USAF in 1992, he joined Rockwell GPS Block II/IIA Operations support staff and was selected as the Master Control Station expert in ephemeris and clock processing (Kalman filter).

In 1994, he became part of Lockheed Martin’s GPS IIR Operations support staff and was orbit mission planner for GPS IIR launches.

Taylor joined his present company, Boeing, in 1998. He developed the navigation performance analysis capability for the GPS IIA/IIF Operations support staff. He has been involved in the evolution and transitions of system architectures and advised GPS chief engineers on technical matters. He was the IIF orbit mission planner.

He developed the procedures and operations for the planning support for the launch and early orbit mission of the GPS IIF spacecraft and now is supporting mission assurance and systems integrations for the first GPS IIF launch.

He received his bachelor’s degree in aerospace engineering from Auburn University (Alabama, USA). He is also the author of numerous technical papers on GPS performance.

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He has participated in bilateral discussions between the United States and the European Community, Japan, Russia, and other nations, and helped improve compatibility and interoperability of current and future GNSSs.

John W. Betz developed the binary offset carrier modulation and participated in the design of modernized signals including GPS M code and L1C. He contributed to aspects of receiver processing for modernized signals and a range of systems engineering activities in support of GPS modernization.

He has participated in bilateral discussions between the United States and the European Community, Japan, Russia, and other nations, and helped improve compatibility and interoperability of current and future GNSSs.

Betz is one of 14 Fellows of The MITRE Corporation, a title given to senior members of the company’s technical staff who have made significant contributions in their field. MITRE is a non-profit organization that provides systems engineering, research and development support to the United States government.

He was co-recipient of the ION’s Samuel M. Burka Award in 2001, and in 2004 received the U.S. State Department Superior Honor Award for work on the U.S./E.U. negotiations on GPS and Galileo. He is a member of the U.S. Air Force Scientific Advisory Board, and was named a Fellow of the Institute of Navigation in 2006.

Betz received his Ph.D. in electrical and computer engineering from Northeastern University in Boston, Massachusetts, USA.

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Kee has published widely on GNSS, pseudolites, space mechanics and UAV Automatic navigation and control and holds more than 15 domestic and international patents for his work on GNSS.

Changdon Kee is a professor and associate head of the School of Mechanical and Aerospace Engineering at Seoul National University. He developed the basic concept and presented the first experimental test results of wide area differential GPS in the early 1990s.

Kee has published widely on GNSS, pseudolites, space mechanics and UAV Automatic navigation and control and holds more than 15 domestic and international patents for his work on GNSS.

He is a Korean government advisor to the cadastral division of the Ministry of Government Administration and Home Affairs and the CNS/ATM system committee of the Ministry of Construction and Transportation. A past vice-president of the Korean Navigation Institute, he is currently the Asian Representative to the Satellite Division executive committee of the U.S. Institute of Navigation.

Kee earned a master’s degree and a doctoral degree in aeronautics and astronautics from Stanford University and a B.S. and M.S. in aeronautics engineering from Seoul National University.

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He has been involved in the development of several spaceborne receivers in Europe, as well as in studies on the European radionavigation projects, such as GALILEO and pseudolite networks.

Jean-Luc Issler heads the Transmission Techniques and Signal Processing Department of CNES, the French space agency. His department’s main tasks are signal processing; air interfaces and equipment in radionavigation; tracking, telemetry, and control; propagation; and spectrum survey.

He has been involved in the development of several spaceborne receivers in Europe, as well as in studies on the European radionavigation projects, such as GALILEO and pseudolite networks.

With Direction de la Recherche et des Affaires Scientifiques et Techniques (DRAST), he represents France in the Galileo Signal Task Force of the European Commission.

In 2004, Issler, with two colleagues, received the Astronautic Prize of the French Aeronautical and Space Association, (AAAF) for his technical work on Galileo signals and space borne GNSS equipment.

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Professor Vidal Ashkenazi is chief executive of U.K.-based Nottingham Scientific Ltd, and a Fellow of the Royal Academy of Engineering. He was the founding director of one of the leading space geodesy research institutes in Europe and has supervised about 50 doctoral (Ph.D.) students, many of whom now occupy senior positions in universities and industry in several countries.

Ashkenazi has acted as a consultant to a large number of government and commercial organisations around the world. He has published several hundred papers and has been invited to give keynote lectures in many international conferences and symposia. Ashkenazi received a medal by the President of the Royal Society in recognition of his “significant contribution to the exploitation of GPS in a wide range of scientific and commercial applications.”

Ashkenazi achieved doctorates in philosophy and physical science from Oxford University in the United Kingdom. He received a bachelor of science in civil engineering and master of science in geodesy from Technion/Israel Institute of Technology.

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Professor František Vejražka graduated with a master of science degree in engineering from the Faculty of Electrical Engineering of the Czech Technical University in Prague, Czech Republic and gained the CSc. (PhD.) degree in 1972. He has been a full professor of radio navigation, radio communications and signals and systems theory since 1996.

Vejražka was appointed the head of Department of Radio Engineering in 1994, vice-dean of the faculty in 2000, and vice-rector of the university in 2001. His main professional interest is in radio satellite navigation where he participated on the design of the first Czech GPS receiver in 1990 for the MESIT Instruments factory. His team at the faculty is the provider of the experimental differential GPS reference station, which has disseminated DGPS corrections through the FM radio data service and very long frequency (VLF) systems.

Vejražka has been principal manager of the five-year project of the Ministry of Transport of the Czech Republic, “Czech Republic participation in the project Galileo,” since 2001. He has published 11 textbooks, more than 200 conference papers, and many technical reports. He is the former president of the Czech Institute of Navigation, a Fellow of the Royal Institute of Navigation in London, and a member of the Institute of Navigation (USA).

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For the previous 11 years, Xia served as an associate professor at the State Key Laboratory for Information Engineering on Surveying, Mapping and Remote Sensing (LIESMARS), Wuhan University, Wuhan, China. He has a broad and diverse experience in satellite navigation research and applications.

In 2007, Linyuan Xia was appointed as a leading professor at Sun Yat-Sen University in Guangzhou, China, where he conducts research and teaches on satellite positioning and surveying.

For the previous 11 years, Xia served as an associate professor at the State Key Laboratory for Information Engineering on Surveying, Mapping and Remote Sensing (LIESMARS), Wuhan University, Wuhan, China. He has a broad and diverse experience in satellite navigation research and applications.

From 1986 to 1994, he worked in several surveying engineering positions with the Exploration and Investigation Bureau of the Yangtze River Water Conservancy Committee, for the Ministry of Water Conservancy. Responsibilities included geodetic calculation, survey engineering design, and seismic and landslide monitoring. During 1997–98 Xia was a member of Chinese Antarctic Expedition Team that established the Chinese base of the International SCAR (Scientific Committee on Antarctic Research) Epoch Crustal Movement Campaign.

Xia has led research investigations into multipath effects for the Chinese navigation system Beidou, positioning and attitude determination for airborne vehicles, and GPS multipath mitigation.

He received his bachelor’s and master’s degrees for engineering from the geodesy department of Wuhan Technical University of Surveying and Mapping. He obtained his Ph.D. from the School of Geodesy and Geomatics of Wuhan University, winning the prize for the best Ph.D. dissertation that year, “Theoretical Research and Numerical Results Regarding Multipath in GPS Observations.”

Xia is the central China coordinator for the International Association of Chinese Professionals in Global Positioning Systems (CPGPS) and served as general secretary for the 2002 International Symposium on GPS/GNSS Symposium, which was held in Wuhan.

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Akio Yasuda is chairman of the GPS Society of the Japan Institute of Navigation and vice president of the Japan GPS Council. From 1986 to 2003 he was a professor at Tokyo University of Mercantile Marine. Since 2003, he has been a professor in the faculty of Marine Technology, Department of Maritime System Engineering, at the Tokyo University of Marine Science and Technology, where now holds emeritus status.

Yasuda received his M.S. and Ph.D. in engineering from Nagoya University. Early research interests included use of laser and microwave technologies to analyze plasma density. Later his research addressed satellite communications where he developed a tracking mechanism for geostationary satellites and also undertook range measurements to the GEOs.

Yasuda’s interest in GNSS began in 1987 with research on positioning data availability in relationship to GPS satellite geometry. He analyzed differential GPS and real-time kinematic GPS positioning accuracy variations among different modes of data transmission. He has organized an annual GPS/GNSS seminar in Tokyo since 1996.

He is a member of the International Program Committee for the annual GPS/GNSS International Symposium and vice director of the Research Forum of Social Infrastructure for Advanced Positioning.

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