Global Navigation Satellite Systems Engineering, Policy, and Design
GPS manufacturers and users who employ so-called codeless and semi-codeless techniques based on exploiting the L2 carrier phase of the military P(Y)-code signals may want to comment on a new proposal to ensure that capability through 2020.
By Glen Gibbons
Nearly 30 years after the first launch of a GLONASS spacecraft, Russia is moving to add code division multiple access (CDMA) signals to the frequency division multiple access (FDMA) format that has set the world’s second-oldest global satellite navigation system apart from GPS and other systems under development.
A February 15, 2008, government decree on new GLONASS requirements calls for open CDMA signals with a binary offset carrier or BOC (2,2) signal structure centered at 1575.42 MHz and a BOC (4,4) signal centered at 1176.45 MHz — essentially corresponding to the center points of GPS signals at the L1 and L5 frequencies and nearby Galileo and Compass signals.
An additional GLONASS FDMA signal will be located at L3 frequencies (1197.648–1212.255 MHz), just below the GPS M-code at L2.
Russia will implement the new signals on the next-generation GLONASS-K satellites, with the first launch currently expected in late 2010 with flight testing the following year.
By Glen Gibbons
The U.S. State Department and the National Coordination Office (NCO) for Space-Based Positioning, Navigation, and Timing (PNT) are soliciting participation from the GPS industry in the Asia Pacific Economic Cooperation (APEC) organization’s GNSS Innovation Summit and the 12th GNSS Implementation Team (GIT) Meeting to be held in Bangkok, Thailand, in May.
The Innovation Summit takes place May 26–27, followed by the GIT meeting May 28–30.
By Glen Gibbons
Russian Deputy Prime Minister Sergey Ivanov’s criticism of Roscosmos and GLONASS continues to ripple in news columns around the world.
Widely reported in Russian media and picked up and amplified in derivative reports, Ivanov’s complaints focused on GLONASS’s relative inaccuracy, limited coverage, and lack of user equipment.
However, aside from the fact that the person making the remarks was Ivanov — a powerful figure once thought to be in line to succeed Russia’s President Vladimir Putin, none of this is really news. Rather, it seems like another example of the phenomenon that, when people learn of something for the first time, they assume it has just happened.
By Glen Gibbons
The European GNSS Supervisory Authority (GSA) has invited bids on an estimated €500,000 ($732,000), 18-month contract to evaluate and propose refinements in the Galileo signals to optimize the system’s prospects in a multi-system GNSS world.
By Glen Gibbons
CSR (Cambridge Silicon Radio) and Motorola have announced launch of an industry group that seeks to promote the integration of GPS and other location technologies to create more robust, continuous positioning capabilities by mobile device users.
By Glen Gibbons
Swindon, UK–based start-up company Air Semiconductor is aiming its first OEM GPS product at what it hopes is a sweet spot in the market: geotagging digital camera photos.
And it may be pointing in the right direction, according to a new IMS Research report that predicts a 200 percent cumulative annual growth rate (CAGR) for GNSS-aided digital cameras over the next five years.
By Glen Gibbons
AGNSS Technique. Nokia graphicFinland’s Nokia, the world’s leading manufacturer of mobile phones, is investigating use of GLONASS signals in new products that could reach the market in the near future.
By Inside GNSS
The Department of Commerce has proposed legislation to boost the U.S. government’s space commerce activities. Specifically, the bill would reauthorize the Office of Space Commercialization (OSC), restore the office’s original name — Office of Space Commerce — and focus the office’s responsibilities to enable a robust and responsive U.S. commercial space industry.
By Glen Gibbons
STMicroelectronics has introduced Cartesio, its new automotive-grade application processor with embedded GPS for navigation and telematics. The processor couples with ST’s GPS RF chip (STA5620) to provide a core receiver unit.
Cartesio (STA2062) integrates a 32-bit ARM CPU core with a high-sensitivity 32-channel GPS subsystem and a large set of connectivity peripherals, including CAN, USB, UARTs, and SPI. It also provides on-chip high-speed RAM and real-time clock functionality, according to the company.
By Glen Gibbons
ESA/CNES launcher at Toulouse Space CenterNext April’s Toulouse Space Show will provide a good deal of company for the European Navigation Conference (ENC-GNSS 2008).
In addition to the annual European Frequency and Time Forum (EFTF 08), which joined ENC-GNSS 2007 this year at TimeNav ’07 in Geneva, Switzerland, events include a Space Applications symposium sponsored by the French space agency CNES, a commercial exhibition, and associated events for the general public, students, and young people, to promote the value of space applications in daily life.
By Glen Gibbons
CAST Navigation VIP simulatorSimulators from CAST Navigation, Billerica, Massachusetts USA, that are being used in government and military labs around the world will now be made available to commercial markets, the company has announced.
By Glen Gibbons
The University of Nottingham and the East Midlands Development Agency (emda) have signed a formal agreement that will create a £9 million (US$18.3 million) state-of-the-art GNSS facility built in Nottingham, United Kingdom.
By Glen Gibbons
