Global Navigation Satellite Systems Engineering, Policy, and Design
The past 15 years have witnessed tremendous developments of new and modernized satellite-based navigation (satnav) systems, including GNSSs, regional systems, and space-based augmentation systems (SBASs). These have been enabled by the original designs of GPS and GLONASS and, in turn, have stimulated the design of satnav signal structures with different characteristics from those pioneer systems.
By Inside GNSS
Specifically designed for those attending the 2013 Institute of Navigation GNSS conference, this four-day course will take place before that event on Friday, September 13; Saturday, September 14; Monday, September 16 and Tuesday, September 17 in Nashville, Tennessee.
It will be taught by Dr. John Betz, the MITRE Corporation.
This course requires a solid background in GPS and familiarity with basic signal processing techniques and engineering mathematics.
By Inside GNSS
Doctoral-level graduate students and early-career engineers, researchers and instructors from Japan and the rest of the world will meet at a weeklong summer seminar this August in Tokyo, sponsored by the Institute of Positioning, Navigation and Timing of Japan.
The summer school will take place in from August 19 through August 24 at the Tokyo University of Marine Science and Technology (TUMSAT). Classes wil be held in English.
The fourth China Satellite Navigation Conference (CSNC 2013) wound up its three-day run on May 17 in Wuhan — by all measures a clear success for an event that has become the nation’s leading international GNSS forum.
A key take-away from the event: China is rapidly preparing to bring BeiDou products and technology into the international marketplace is encouraging its industry to build an internationally applicable knowledge base in standards, patent law, and intellectual property rights (IPR).
By Inside GNSS
Prof. Jingnan Liu, Chinese Academy of EngineeringSince announcing plans in late 2006 to build its own GNSS system — BeiDou-2 (BDS), China proceeded quickly to establish a fully operational regional system late last year with a clear plan to complete a global system by 2020.
Beginning with its first launch in April 2007, BDS has put 16 satellites in orbit, some in dual launches, with 14 BeiDou space vehicles currently transmitting healthy signals: 5 in geostationary orbits (GEO), 5 in inclined geosynchronous orbits (IGSO), and 4 middle Earth orbit (MEO) spacecraft.
By Inside GNSS
Di Qiu at the site of her current employerSIDEBAR: Di Qiu’s Compass Points
Landing all-weather aircraft safely in storms. Protecting sensitive data not only through encryption but based on the location at which it is being accessed. Ensuring that accurate and timely information reaches first responders responding to emergencies.
Although still in the early part of her career, Di Qiu has already made significant contributions to these crucial applications of navigation technology.
By Inside GNSS
Q: How do you deal with timing differences between GNSSs?
A: All GNSSs inherently depend on precise timekeeping to measure the satellite/receiver time of flight of signal propagation with sufficient accuracy to compute ranges/distances for multilateration calculations. Each GNSS ground segment therefore dedicates considerable effort to maintaining a highly stable atomic time scale as well as the corresponding offset to global standards such as UTC (Coordinated Universal Time).
By Inside GNSS
Inside GNSS will host an applications-oriented web seminar on GNSS and inertial integrated systems on Tuesday, June 18.
The free event is sponsored by KVH Industries.
Webinar presenters are Xavier Orr, an R&D engineer of 3D navigation technologies at Advanced Navigation in Australia and Andrey Soloviev, principal at Qunav LLC and a research engineer who focuses on multi-sensor integration for navigation applications.
GNSS Solutions editor and University of Calgary professor Mark Petovello moderates.
Major changes for the annual PTTI meeting this year – it will be held on the West Coast, in the high-tech concentration of Seattle’s east side and it has come under the wing of the Institute of Navigation, the new organizer of the event.
PTTI 2013, the 45th systems and applications meeting for Precise Time and Time Interval managers, system engineers and program planners, will be held at the Hyatt Regency Bellevue on December 2 through 5.
By Inside GNSS
The fourth China Satellite Navigation Conference (CSNC 2013) wound up its three-day run on Friday (May 17, 2013) in Wuhan — by most measures a clear success for an event that has become the nation’s leading GNSS forum.
Well more than 2,000 attendees had their choice of 627 technical papers spread across a broad array of topics in 12 session tracks under the conference theme: BeiDou Application — Opportunities and Challenges.”
By Inside GNSS
The ITU (InternationalTelecommunications Union) and the BIPM (International Bureau of Weights and Measures) will hold a workshop on the Future of Universal Coordinated Time (UTC) on September 19 and 20 at the ITU offices, Avenue Giuseppe-Motta, in Geneva, Switzerland.
By Inside GNSS
Existing methods for improving the GNSS performance commonly attempt to enhance the signal processing and navigation estimation parts of a single receiver. Such approaches, however, leave unexplored the potential benefits inherent to the integration of data from multiple receivers.
By Inside GNSS
Yang Yuanxi, China National Administration of GNSS and ApplicationsChina will begin launching BeiDou-2 satellites again in 2013 as it begins its test program for the third generation of the nation’s GNSS program.
After launching 16 satellites since 2007 (including six last year) to establish the current regional constellation with 14 operational satellites and publishing an official interface control document December 27, China called a halt to further launches to evaluate the performance of the system and complete a development plan for the system.
By Inside GNSS
