Dr. Alison Brown

For her contributions to the development of GPS technology, the fielding of the FAA’s WAAS and the modernization of GPS as well as for outstanding service to the Institute of Navigation’s Satellite Division.

Dr. Alison Brown is the founder, president and chief executive officer of NAVSYS Corporation, which specializes in developing next generation Global Positioning System (GPS) technology. From 1981 to 1986, prior to her work at NAVSYS, Dr. Brown was a member of the technical staff at Litton Aero Products and Guidance and Control Systems where she developed GPS receiver and strapdown inertial navigation systems. Dr. Brown’s accomplishments are many and include the following: leading the original RTCA Integrity Working Group that developed the concept of Receiver Autonomous Integrity Monitoring and the use of a GPS integrity network and geostationary augmentation system, which led to the development of the Wide Area Augmentation System (WAAS); pioneering the development of Wide Area Differential GPS; fielding the first GPS cellular emergency location system under the FHWA/CDOT “Mayday” program; developing the FAA WAAS Ground Uplink Station equipment and algorithms used to broadcast a “bent-pipe” GPS augmentation signal; and developing a digital beam-steering, software reprogramable GPS receiver for high accuracy commercial and military applications.

Dr. Brown is a member of the Scientific Advisory Board for the U.S. Air Force, the Interagency GPS Executive Board Independent Advisory Team, and serves on the GPS World editorial advisory board. She was a member of the GPS-3 Independent Review Team from 1999 to 2002, and was the first program chair of the ION’s GPS annual conference.

Dr. Brown holds five patents, has chaired numerous conferences and technical sessions on GPS, and has published more than 100 technical papers.

Dr. Brown has a Ph.D. in mechanics, aerospace, and nuclear engineering from UCLA (1985), an M.S. in aeronautics and astronautics from Massachusetts Institute of Technology, and an M.A. and B.A. in engineering from Cambridge University. She is a Scholar of Sidney Sussex College, a Draper Fellow, a Dupont Scholar, and was awarded the Sir George Nelson prize for Applied Mechanics at Cambridge University.

Mr. Patrick Fenton

For his sustained contributions in the field of GPS, including advanced receiver architecture and designs, multipath, reduction, digital signal processing techniques and technical publications.

Mr. Patrick Fenton received his geomatics engineering degree from the University of Calgary in 1981. He was first employed by the survey division of Shell Canada where he developed software for airborne laser scanning equipment, inertial navigation systems and GPS. In 1982, after Shell’s survey division became Nortech Inc., Mr. Fenton became head of the software team that developed Nortech’s first GPS receiver, the Norstar 1000.

In 1989, NovAtel Inc. acquired the GPS receiver subsidiary of Nortech Survey to begin the development of an entirely new line of advanced GPS products. As the chief engineer of NovAtel’s GPS division, Mr. Fenton developed and patented the Narrow Correlator technology with other colleagues in 1991—a major milestone in the performance enhancement of GPS receivers. As part of the NovAtel development team, Mr. Fenton also spearheaded the developments of more advanced multipath techniques of MEDLL and PAC. The Narrow Correlator, MEDLL and PAC technologies are now standards in the GPS industry. (MEDLL is used in all SBAS ground stations: WAAS, EGNOS, SNAS, MSASS.) Mr. Fenton has also been involved in the development and patenting of many other GPS receiver enhancement technologies.

Mr. Fenton has published papers on a regular basis and has been involved in ION activities for more than 10 years. He has served as a technical chair for ION GPS 1998 and has chaired or co-chaired many sessions at ION conferences. Mr. Fenton is the current vice president and chief technology officer at NovAtel Inc.

Mr. John A. Klobuchar

For more than 25 years of continuing contributions to satellite navigation regarding the evaluation and specifi cation of the effects of the ionosphere on satellite navigation signals.

Although John (Jack) Klobuchar’s field (Atmospheric Research Scientist) was not originally navigation, he has been supporting satellite navigation since the early 1970s as a leading expert on the effects of the ionosphere on satellite navigation signals. As a senior physical scientist at the Air Force Research Laboratory (AFRL), the GPS Joint Program Office asked him to develop an ionospheric delay model for GPS single-frequency users to be broadcast from the GPS satellites. His successful model became known as “Klobuchar Model.” He has been called upon to evaluate numerous other effects of the ionosphere on the GPS signal, especially the effects of ionospheric phase and amplitude scintillation. Before retiring from the AFRL, he sponsored a Small Business Innovative Research (SBIR) program for the development of a GPS Ionospheric Scintillation Monitor that measures and computes a variety of scintillation parameters that describe those effects. The SBIR project led to the development of a commercial product that is used worldwide for monitoring ionospheric scintillation effects.

Mr. Klobuchar is currently with Innovative Solutions International where he leads the FAA ionospheric research efforts for Space Based Augmentation Systems. He is also the FAA representative to and the U.S. co-chair of the International Working Group on Atmospheric Effects on SBAS. He is vice chair of the URSI international working group on Studies of the Ionosphere using Satellite Beacon Signals. He has organized and chaired numerous sessions on atmospheric effects for various ION conferences, and he has been the co-chair of the Triennial Ionospheric Effects Symposia, held in Washington, D.C., every three years since 1975.

Mr. Klobuchar is an author or co-author of over 70 papers in refereed journals. He is a Fellow of the IEEE, a member of URSI, the American Geophysical Union, the American Association for the Advancement of Science, and the Institute of Navigation.

He received his B.S. and M.S. degrees in electrical engineering from the University of Illinois, Urbana, in 1958 and 1960, respectively.

Professor Gérard Lachapelle

For his sustained contributions in the field of global navigation satellite systems, including differential GPS, kinematic carrier-phase methods and applications, integration, and educational efforts.

Prof. Gérard Lachapelle has been with the Department of Geomatics Engineering at the University of Calgary since 1988 where he holds a Canada Research Chair and an iCore Chair in wireless location.

From 1980 to 1988, Prof. Lachapelle was vice president of research and development at Nortech Surveys Inc. and Sheltech Canada where he was responsible for early GPS receiver testing, differential method and software development, and applications. He has contributed to many aspects of ground- and satellite-based navigation, including the development and testing of kinematic carrier-phase real-time differential methods using single and multiple reference stations, GPS based attitude determination, performance evaluation of GPS/Galileo, Loran-C calibration, and cellular telephone location. Prof. Lachapelle has published widely, and the GPS software he has co-authored with his colleagues and students is licensed worldwide.

He holds degrees in surveying and geodesy from Laval University, Canada, the University of Oxford, U.K.; the University of Helsinki, Finland; and the Technical University at Graz, Austria.

Prof. Lachapelle has been active in numerous associations and has held these positions among others: president of the Canadian Institute of Geomatics, chair of the Canadian Navigation Society, and chair of the Alberta Section of the Institute of Navigation.

He served as program chair and general chair of ION GPS 2001 and ION GPS 2002, respectively. He has also taught GPS-related short courses for Navtech Seminars Inc. since 1989. He has received numerous awards, including the Canadian Aeronautics and Space Institute’s Alouette Award and the ION’s Johannes Kepler Award. In 2002, he was elected a Fellow of the Royal Society of Canada.

Dr. Pratap Misra

For his significant contributions to the field of satellite navigation in the areas of GLONASS, clock-aiding, cycle ambiguity resolution and education.

Dr. Pratap Misra is one of the leading Western experts on the Russian satellite navigation system, GLONASS. At the Massachusetts Institute of Technology (MIT) Lincoln Laboratory where he is a senior staff member, Dr. Misra established a sophisticated laboratory to monitor the performance of GLONASS and assess its applicability to civil aviation navigation. His laboratory has been the primary civil source of GLONASS information in the United States. Dr. Misra is also recognized for his ground-breaking research on the combined use of GPS and GLONASS. He developed a technique for transforming the coordinates of GLONASS to those of GPS and combining the measurements of both systems for the purpose of receiver autonomous integrity monitoring (RAIM). Dr. Misra lends his GLONASS expertise to the RTCA and the Institute of Navigation, and to other professional groups with interests in GLONASS.

Dr. Misra’s work on civil aviation also led to important work on clock-aiding in satellite navigation receivers for which he has been awarded two U.S. patents. Dr. Misra’s work on GLONASS also led to an interest in fast cycle ambiguity resolution. His work also yielded new ambiguity resolution algorithms that enable single-epoch resolution using GPS alone. Dr. Misra’s contributions to GPS education include co-authorship of a special issue of the IEEE proceedings published in January 1999 and co-authorship of The Global Positioning System: Signals, Measurements and Performance—a text book on GPS navigation directed to those with an undergraduate degree in the physical sciences or engineering.

A long-time member of the ION, he has served as chair of the GPS-GLONASS Interoperability Working Group (1996 to 1999), and as program chair and general chair of the ION National Technical Meetings in 2001 and 2002, respectively. He currently serves as secretary of the Satellite Division of the Institute of Navigation. Dr. Misra received his Ph.D. in engineering sciences from the University of California at San Diego in 1973.

Dr. Benjamin W. Remondi

For continuing contributions and leadership in the advancement of centimeterlevel GPS positioning, both static and kinematic.

Dr. Benjamin W. Remondi is president of The XYZs of GPS, Inc. where he designs and develops real time and playback software systems and products in support of static and kinematic positioning based primarily upon GPS observations. In the 1980s

Dr. Remondi proposed a number of methods in use today such as the triple differencing method, the antenna exchange method, and the kinematic survey method, while at the National Geodetic Survey of NOAA. His early work was the beginning of the “antenna swap” method. Dr. Remondi was the first to show that one can do precise GPS carrier-phase positioning with triple-difference measurements (in contrast to double differences). This was documented in his doctoral dissertation in 1984. The notation that

Dr. Remondi introduced in his dissertation is now the de facto standard used by researchers in the field. Many researchers consider Dr. Remondi to be the “Father of Real-Time Kinematic Survey.”

Today Dr. Remondi concentrates on subcentimeter real-time “static” monitoring and subdecimeter real time kinematic positioning over baselines up to hundreds of kilometers.

Dr. Remondi’s professional contributions over the past 20 years include participation in numerous GPS and surveying conferences, as both a technical chair and presenter, many technical papers, and participation in many planning committees, especially those related to GPS modernization and LAAS integrity.

Dr. Remondi received his Ph.D. from the University of Texas in 1984. He has written over 50 technical papers many of which were presented at ION meetings. He has been a member of The Institute of Navigation since 1982 and from 1992 to 1994 served on the ION Council as a Land Representative.

Ms. Karen Van Dyke

For her outstanding contributions to the civil applications of GPS and especially for her role in incorporating GPS into the National Air Traffic Control System.

Ms. Karen Van Dyke is a member of the technical staff with the Center for Navigation at the U.S. Department of Transportation Volpe Center. Ms. Van Dyke has conducted availability and integrity monitoring studies for aviation applications of GPS for all phases of flight. She has achieved outstanding success in translating her technical knowledge into real-world applications in the field of aviation. She was the project lead of a Volpe Center team that designed, developed, and implemented GPS Receiver Autonomous Integrity Monitoring (RAIM) outage reporting systems for both the U.S. Air Force and the Federal Aviation Administration (FAA), which are used to brief GPS availability to pilots during pre-flight planning. She currently is working with the FAA to develop prediction models for the GPS Wide Area and Local Area Augmentation Systems to support the Notice to Airmen system.

Ms. Van Dyke also has worked with Australian, German, and Chilean aviation authorities on the implementation of similar systems for use by pilots and air traffic control in these countries.

Ms. Van Dyke was a member of a team that conducted a study for the Office of the Secretary of Transportation to identify and analyze GPS vulnerabilities and interference mitigation techniques for all modes of transportation. Recently, she supported the GPS Joint Program Office on a GPS requirements traceability study, and headed a team to conduct the Interagency GPS Executive Board-sponsored Integrity Failure Modes and Effects Analysis.

Ms. Van Dyke is the recipient of the Award for Meritorious Achievement (Silver Medal) from the Secretary of Transportation and the Superior Achievement Award (Bronze Medal) from the DOT Research and Special Programs Administration. She has served on the Institute of Navigation Council since 1992 and served as president of the ION from June 2000 to June 2001. She is a recipient of the ION Early Achievement Award. Ms. Van Dyke received her B.S. and M.S. degrees in electrical engineering from the University of Massachusetts at Lowell, has published many papers on GPS, and is a co-author of the book, Understanding GPS: Principles and Applications.

Mr. Charles Trimble
HONORARY FELLOW

For the successful commercialization of practical, cost effective and high precision GPS receivers—bringing the utility of GPS to everyone.

Mr. Charles R. Trimble originally founded Trimble Navigation Limited (TNL) in 1978 to create Loran navigational products. In 1982, he began to develop GPS receivers and was the driving force behind introducing the fi rst economic timing receiver in 1984. This success led to the development of products for the military and for the nascent survey market, and to further innovations in GPS receiver designs, including military receivers and commercial handheld receivers. Under Trimble’s guidance, TNL introduced the fi rst RTK survey receivers and products for GIS/mapping, avionics, and vehicle tracking. The Trimble patent portfolio has the largest single collection of GPS patents in the world. In 1998, Mr. Trimble left TNL to chair the U.S. GPS Industry Council. He has been active in policy development of GPS in commercial and civilian applications, while preserving the military advantages of GPS and has been intimately involved in protecting the GPS spectrum.

Mr. Trimble serves on the board of directors of several high tech companies and is a member of the National Academy of Sciences, the National Academy of Engineering, the Board of Trustees of Caltech, and the NASA Advisory Council. He also served on the Board of Governors for the National Center for Asia-Pacifi c Economic Cooperation and is a member of the Council on Foreign Relations.

Mr. Trimble has received many awards in recognition of his achievements: INC Magazine’s Entrepreneur of the Year award (1991), CEO of the Year (electrical instruments) from Financial World Magazine (1996), the Kershner Award from the IEEE Position Location and Navigation Symposium (1996), the Piper General Aviation Award from the American Institute of Aeronautics and Astronautics for pioneering the manufacture and application of affordable GPS, the American Electronic Association’s Medal of Achievement (2000), the NASA Technology Medal (2001), and the Golden Gizmo award from the San Jose Tech Museum (2002).

Mr. Trimble has a B.S. degree in engineering physics (1963)and an M.S. degree in electrical engineering (1964) from the California Institute of Technology. .

Dr. Kai-Tuen Woo
POSTHUMOUS FELLOW

For his important contributions over 30 years to the navigation sciences. His designs guide aircraft, spacecraft and tractors around the world.

Dr. Kai-Tuen Woo, chief systems designer, principal and co-founder of NavCom Technology, leaves behind a legacy GPS receiver design, spread spectrum communications, and satellite communication systems engineering achievements in a career spanning more than 30 years. Dr. Woo’s systems design expertise lives on in NavCom’s core technology; in his impressive list of patents; in more than 30 published technical papers; as co-author of a textbook on spread spectrum communications, Communication and Nuclear Scintillation; and in the abilities of the many systems engineers he mentored at NavCom.

Prior to his tenure at NavCom, Dr. Woo earned his Ph.D. in electrical engineering from UCLA and worked for companies such as The Aerospace Corporation, the Jet Propulsion Laboratory, TRW, Rockwell International, and IBM, where he designed and developed systems for UHF frequency hopping radios, satellite terminals, telephone modems, multi-megabit telemetry receivers, and the payload system engineering for a number of communication satellites, including the National Aeronautics and Space Administration’s tracking and data relay satellite.