Global Navigation Satellite Systems Engineering, Policy, and Design
The United States remains the current leader in space competitiveness, but its relative position is eroding in the face of increased funding, streamlined policy, and industrial improvements in other space-faring nations.
By Inside GNSS
In recent years, researchers have explored possible new allocations for Radio Determination Satellite Service (RDSS) and Radio Navigation Satellite Service (RNSS) spectrum from a regulatory point of view. These studies have mainly discussed S-band and C-band in addition to L-band.
The International Telecommunications Union (ITU) Radio Regulations define RNSS as a subset of RDSS. Although the allocations are differentiated — RDSS usually has a paired uplink — both can actually be used for satellite navigation.
By Inside GNSS
Q: Is it possible to define a fully digital state model for Kalman filtering?
A: The Kalman filter is a mathematical method, purpose of which is to process noisy measurements in order to obtain an estimate of some relevant parameters of a system. It represents a valuable tool in the GNSS area, with some of its main applications related to the computation of the user position/velocity/time (PVT) solution and to the integration of GNSS receivers with an inertial navigation system (INS) or other sensors.
By Inside GNSS
Map Africa 2010 conference and exhibition will take place at the Cape Town International Convention Centre (CTICC) in the center of Cape Town, South Africa on November 23-25, 2010.
The theme is "Geospatial Readiness for Building Africa." The conference will focus on the most pressing areas that contribute to the nation’s growth, such as infrastructure and utilities, cadastral mapping, land information management system (LIS), land policies, mining and exploration and emergency management.
By Inside GNSS
Japan’s Electronic Navigation Research Institute (ENRI) will present the second workshop on Communications, Navigation and Surveillance Systems for Air Traffic Management at the Akihabara Convention Hall in Tokyo on November 11 and 12, 2010.
Registration will close on October 30, 2010.
The theme is ForeSEE: Safety, Efficiency and Environment. The conference is free and will be held in English.
By Inside GNSS
The theme of the G-spatial Expo is "When and Where," how geospatial information is changing our lives.The goal of the event is to promote space-based positioning, navigation and timing technologies and to inspire new businesses that use geospatial information.
It will take place at Pacifico Yokohama in Yokohama, Japan on September 19-21, where more than 30,000 visitors are expected during the run of the event.
By Inside GNSS
The 9th TRANSNAV symposium will be held June 15-17, 2011 at Gdynia, Poland, a seaport and resort city on the south coast of the Baltic.
The biennial event is an opportunity for scientists and professionals in navigation, transport, ocean engineering and maritime technology to share knowledge and research on all aspects of maritime navigation and safety of sea transportation. The symposium is held in English.
By Inside GNSS
Wireless pioneer Andrew Seybold and Kanwar Chada, founder of SiRF Technology, will select the finalists for the People’s Choice awards for best location innovation at the 2010 Location & Beyond Summit on October 6. The event focuses on the "transformative effects of connecting everything and everyone, everyplace."
The four-year-old summit — formerly Location 2.0 — will be held at the St. Regis Hotel in San Francisco during the CTIA Wireless Enterprise and Applications 2010 conference.
By Inside GNSS
The Locations & Beyond Summit — a four-year-old event with a new name — will be held at the St. Regis Hotel in San Francisco on October 6, 2010, during the CTIA Wireless Enterprise and Applications 2010 conference.
Organizer CSR says the event will focus on the " transformative effects of connecting everything and everyone, everyplace." Panels and discussions are aimed at developers of new location-aware products,applications, services and technologies.
By Inside GNSS
Topcon Positioning Systems (TPS) has announced the release of Spatial Factory software.
The software interface allows users to work with the combination of point cloud, trajectory, and panoramic image data that comes from the Topcon IP-S2 3D mobile mapping system.
By Inside GNSS
[Reprinted with permission from NAVIBIZ, Issue Date: 2010-7-23]
On June 2, China successfully launched the fourth BeiDou navigation satellite into the pre-designated orbit, symbolizing that China has made another important step forward in building the BeiDou (COMPASS) Navigation Satellite System. As is known to all, satellite navigation and positioning system is the key strategic infrastructure for information, and it will influence the process of social civilization and change people’s ideas about life, time and space.
By Inside GNSS
FIGURE 1: GNSS multi-channel signal simulator 10 years ago on its own (left) and with its ever-growing family (right)For the complete story, including figures, graphs, and images, please download the PDF of the article, above.
In this article we describe the design and operation of a generic GNSS RF simulator. We also will look at the main types of GNSS RF simulators, their designs and specifics, their advantages and disadvantages.
By Inside GNSS
GINA On-Board Unit (OBU)For at least the past two decades, managing traffic on Europe’s road networks has been a growing concern for European policy makers and citizens alike. While demand for transport has consistently increased over the years, Europe’s road network capacity has failed to keep pace, leading to increasing levels of congestion and pollution.
By Inside GNSS
