Summary of the workshop -- Address at the opening ceremony of the NAE-CAE joint workshop on global navigation satellite systems (GNSS) -- Introductory remarks -- Development of the BeiDou navigation satellite system -- U.S. GPS policy, programs and international cooperation activities -- Research report on GNSS interoperability -- The interchangeability problem: signals, coordinate frames, and time -- COMPASS/BeiDou coordinate and time reference systems -- A global safety of life service from multiple GNSS constellations -- Monitoring and assessment of GNSS open services -- Alternative position, navigation, and timing: the need for robust radionavigation -- Analysis of the GNSS augmentation technology architecture -- Impact of intentional, low power, in-band, personal privacy devices (PPDs) on aviation -- GNSS open signals interference issues and countermeasures -- Present and future applications of COMPASS navigation satellite system -- Application of GNSS to environmental studies -- Recent progress on GNSS seismology -- Precision agriculture: opportunities and challenges -- Integrity lessons from the WAAS integrity performance panel -- Breaking the ice: navigation in the Arctic.

HKBU Library

The Global Positioning System (GPS) has revolutionized the measurement of position, velocity, and time. It has rapidly evolved into a worldwide utility with more than a billion receiver sets currently in use that provide enormous benefits to humanity: improved safety of life, increased productivity, and wide-spread convenience. Global navigation satellite systems summarizes the joint workshop on Global Navigation Satellite Systems held jointly by the U.S. National Academy of Engineering and the Chinese Academy of Engineering on May 24-25, 2011 at Hongqiao Guest Hotel in Shanghai, China. "We have one world, and only one set of global resources. It is important to work together on satellite navigation. Competing and cooperation is like Yin and Yang. They need to be balanced," stated Dr. Charles M. Vest, President of the National Academy of Engineering, in the workshop's opening remarks. Global navigation satellite systems covers the objectives of the workshop, which explore issues of enhanced interoperability and interchangeability for all civil users aimed to consider collaborative efforts for countering the global threat of inadvertent or illegal interference to GNSS signals, promotes new applications for GNSS, emphasizing productivity, safety, and environmental protection. The workshop featured presentations chosen based on the following criteria: they must have relevant engineering/technical content or usefulness; be of mutual interest; offer the opportunity for enhancing GNSS availability, accuracy, integrity, and/or continuity; and offer the possibility of recommendations for further actions and discussions.