2012 ION Fellows

Patricia Doherty

For contributions to radio wave propagation through the ionosphere and exemplary service to The Institute of Navigation.

Patricia "Pat" Doherty has been an active researcher in the area of radio wave propagation for the past 20 years, focusing particularly on ionospheric effects in satellite-based navigation. She has supported and led ionospheric research in support of Satellite-Based Augmentation Systems (SBAS), of which the FAA’s Wide Area Augmentation System (WAAS) is an example. She serves as the co-chair of the International SBAS Working Group. She has authored or co-authored over 50 technical papers and reports based on her research, many of which she has presented at various ION meetings. She is a co-recipient of the ION’s Burka Award (1995) for outstanding achievement in the preparation of a technical paper in NAVIGATION which contributed to the advancement of navigation and space guidance.

Pat has been instrumental in drawing the ION into a larger mission of Positioning, Navigation, and Time (PNT) education worldwide. Pat was instrumental in the organization, realization and success of the Institute’s ION GNSS 2011 tutorial program. For the past three years she has also lead an initiative to help developing countries derive social and economic benefits from the satellite-based technology of PNT. She has organized and chaired two three-week-long training sessions over the past three years, with more to come, in which a dozen prominent ION members have taught and interacted with teams of professors and scientists from African universities. Because of these outreach efforts, sustainable developments have been made in Africa and numerous academic programs are operational or in the process of development. GPS receivers have been installed in many universities and scientists and students are using the knowledge provided from the workshops and the infrastructure to develop masters and Ph.D. research topics. The scientific community is now seeing the first ionospheric measurements from Africa, a region that has been previously void of information. Perhaps most importantly, these activities have resulted in a general awareness of GPS by local governments and universities in Africa with the hope that GNSS applications will eventually be used to increase food security, manage natural resources, provide efficient emergency location services, improve surveying and mapping, and provide greater precision and safety in land, water, and air navigation systems.

Pat has also served in numerous volunteer offices in the Institute including the ION’s Executive Committee, Council, chair of the New England Section, the Satellite Division Executive Committee and as program and general chair of the ION GNSS meeting (2010 and 2011, respectively). She is currently executive vice president of the Institute.

Dr. John Raquet

For leading the development of numerous GPS and non-GPS navigation technologies; and for significant impact on the next generation of navigation professionals through education.

For more than 20 years, Dr. John Raquet has dedicated himself to outstanding technical service in the Position, Navigation and Time (PNT) community as an active duty United States Air Force officer, civil servant, educator, professional society leader, and community volunteer. He rapidly developed a professional career path focused on PNT technology-related research, development, test, and evaluation (RDT&E) and education that have made a significant impact on the PNT community – especially those that are dependent upon accurate, reliable, available, and robust PNT information. Collectively, his professional and personal record has demonstrated PNT technical expertise, leadership, and initiative in and across a wide range of activities and organizations where he is an internationally recognized PNT expert.

His accomplishments include the creation of AFIT’s Advanced Navigation Technology (ANT) Center where he established a robust research capability. The ANT Center has quickly become the USAF’s top PNT research laboratory for GPS accuracy and robustness, alternative PNT (non-GPS technologies), and multi-sensor and system integration.

Additionally, through his extensive involvement with The Institute of Navigation (ION), he sought out world-class researchers performing PNT research using technology and techniques not involving GPS. His leadership in these efforts provided the foundation for the creation of a government, university, and industry consortium to address PNT R&D challenges and issues. Membership in the “Consortium of Ohio Universities on Navigation and Timekeeping” (COUNT) provides the USAF with direct access to over 40 faculty members, more than 100 students, and more than $10 million in annual research funding.

Dr. Raquet has published over 100 navigation-related conference and journal papers and taught 35 navigation-related short courses to over 1200 students. He was a Fulbright Scholar at the Tampere University of Technology in Finland (2010); recipient of the John L. McLukas Basic Research Award (2007); the Col. Charles A. Stone Award (2006); the ION’s Early Achievement Award (2002); the International Test and Evaluation Association (ITEA) Time-Space Position Instrumentation Data Collection and Electro-Optic Test and Evaluation Award (1994); and the John von Neumann Award (1989).

John has held numerous volunteer positions within the Institute including general and program chair of the ION GNSS meeting, member of the ION Executive Committee and Council, and he is currently chair of the Satellite Division Executive Committee.

Prof. Chris Rizos

For sustained contributions to the practice and management of satellite navigation research; and for leadership representing the satellite navigation community in Australia.

Prof. Chris Rizos is an internationally recognized expert in GNSS geodesy; algorithms and methodologies for precise kinematic positioning using GPS and other GNSS signals; the combination of GPS and Differential Interferometric SAR for ground subsidence monitoring; pseudolite and new terrestrial navigation sensor research; multi-sensor integration; and data quality, multipath and RF interference studies. Over the last ten years Prof. Rizos has expanded his work into the areas of GNSS reflectometry, integrated GNSS and WiFi positioning, terrestrial RF-based positioning (including Locata), and investigations on software receivers. This body of research is internationally recognized; the results of which have been published in many refereed journals and presented at ION, IAG, FIG, and other national and international conferences.

Chris is recognized for pioneering navigation research at the Satellite Navigation and Positioning (SNAP) group in the University of New South Wales – today’s premier GNSS and wireless location technology laboratory in Australia. He recently established Australia’s first academic research group in GNSS receiver design using reconfigurable hardware and software-defined radio principles which has led to the development of the “Namuru” GNSS research receiver, the current versions of which are being developed for satellite applications.

Chris has demonstrated sustained commitment to teaching in the fields of navigation, geodesy, and geomatics. He has taught satellite navigation courses at UNSW and professional short courses for over 20 years. More than 20 graduate students from Prof. Rizos’s lab have won ION student prizes/scholarships to attend the ION GPS/GNSS international conferences. He is the author or co-author of four papers in NAVIGATION, 80 ION conference papers, and over 500 journal and conference papers in general.

During his professional career Chris has made numerous contributions to the activities of professional and scientific societies including serving as president of the International Association of Geodesy (2011-2015), a current member of the Governing Board of the International GNSS Service (since 2004), co-chair of the Steering Committee of the Multi-GNSS Asia organization, and as a past member of the ION Satellite Division’s Executive Committee (2004-2006). He has also served on numerous other committees and panels dealing with geodesy, GPS, GNSS or navigation science, including dozens of conference organizing committees.