Figures 3 & 4: First Results
Return to main article: "First Results: GLONASS CDMA L3 Ambiguity Resolution"
By Inside GNSS
Global Navigation Satellite Systems Engineering, Policy, and Design
Global Navigation Satellite Systems Engineering, Policy, and Design
Return to main article: "First Results: GLONASS CDMA L3 Ambiguity Resolution"
By Inside GNSS
COSPAR 2016, originally scheduled for July 30 to August 7 in Istanbul, Turkey, has been cancelled due to the recent attempted coup by elements in the national army.
1. CARTOON FRENZY
Absolutely Everywhere, The World
The Air Force is defending the new GPS ground system, taking a stand against naysayers in Congress and declaring through its actions an intent to stick with the Next Generation Operational Control System program (OCX) — at least for now.
The most public of these actions occurred June 30 when Secretary of the Air Force Deborah Lee James announced OCX would surpass by at least 25 percent the program’s estimated cost. She declared a critical Nunn-McCurdy breach, putting the program on a path to automatic cancellation.
By Dee Ann Divis
>>Jade Morton’s Compass Points
Yu — or Jade, in English — Morton is an electrical engineer, a professor at Colorado State University (bound for the University of Colorado Boulder in 2017), and a shining star in the world of GNSS. She left work for eight years to be a full-time mother, then returned to a university professorship and high-level research, where she has been recognized for her work on ionospheric effects on global navigation satellite systems.
By Inside GNSS
Four global navigation satellite systems are scheduled to be fully operational orbiting Earth in the coming years: the NAVSTAR Global Positioning System (GPS) from the United States, the GLObal NAvigation Satellite System (GLONASS) from Russia, the Compass/BeiDou-2 System (BDS) from China, and Galileo from Europe. A considerably high number of signals, coming from the satellites of those constellations, will share the radio electric spectrum.
By Inside GNSS
Japan’s regional and augmentation positioning system, the Quasi-Zenith Satellite System (QZSS), is a project yet to be developed. While it will become a constellation of seven satellites covering the western Pacific area, only “Michibiki,” the first satellite launched in 2010 for technological validation , is now in orbit.
By Ingo Baumann
Q: How does one compute the noise power to simulate real and complex GNSS signals?
By Inside GNSS
In February 2011, Russia launched the first satellite of the GLONASS-K1 series, i.e., SVN (space vehicle number) 801 (R26), which in addition to the legacy frequency division multiple access (FDMA) signals, for the first time was enabled to transmit code division multiple access (CDMA) signals on the GLONASS L3 frequency (1202.025 MHz). Later in 2014, the GLONASS program added SVNs 802 (R17) of series K1 and 755 (R21) of series M, and in 2016, SVN 751 of series M, with the capability of transmitting CDMA L3 signals to the constellation.
By Inside GNSS
Contemporary times have seen an increase in the number of navigation satellites across various geographical regions. In order to ensure that all these satellite systems work together to optimize the positioning, navigation, and timing (PNT) of users on or near the Earth’s surface there is need for inter-cooperation and inter-operability of the systems.
By Inside GNSS
The 2016 European Space Agency (ESA) International Summer School on Global Navigation Satellite Systems will take place at the Italian campus of European Commission’s joint scientific and research center (JRC – CCR ISRA) on Lake Maggiore in Ispra, near Varese.
Electronic Throwaways, Space X Wins, Drones at Sea and Shaking It Up
By Inside GNSS
