Design & Test

Quad-Constellation Receiver: GPS, GLONASS, Galileo, BeiDou

January 1, 2014By

The implementation changes and first live tests of BeiDou and Galileo on Teseo-3 GNSS chips developed in 2013 are covered, bringing it to a four-constellation machine. By 2020, we expect to have four global constellations all on the same band, giving us more than 100 satellites — under clear sky, as many as 30 or 40 simultaneously. read more

Innovation: Cycle Slips

January 1, 2014By
FIGURE 1. A cycle slip affecting phase measurements but not the pseudoranges.

Detection and Correction Using Inertial Aiding
A team of university researchers has developed a technique combining GPS receivers with an inexpensive inertial measuring unit to detect and repair cycle slips with the potential to operate in real time. read more

Averna DP-360 DOCSIS Protocol Analyzer Supports 16×4 Channel Bonding

December 13, 2013By

Averna has issued a new software release for the DP-360 DOCSIS Protocol Analyzer, featuring support for 16×4 channel bonding for broadband testing. Averna’s DP-360 provides functional DOCSIS and EuroDOCSIS network analysis, allowing for exceptional visibility into all layers of the network, the company said. Multiple system operators (MSOs), chipset manufacturers, product developers and certification bodies use the DP-360 to quickly... read more

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Galileo Achieves First Airborne Tracking

December 12, 2013By
Aircraft position as obtained by Galileo-only receiver during Netherlands flight.

The European Space Agency’s Galileo satellites have achieved their first aerial fix of longitude, latitude and altitude, enabling the inflight tracking of a test aircraft. ESA’s four Galileo satellites in orbit have supported months of positioning tests on the ground across Europe since the first fix in March. Now the first aerial tracking using Galileo has taken place, marking the... read more

GNSS Simulator in R&S SMBV100A Now Supports BeiDou

November 25, 2013By
Rohde-Schwarz-Beidou

Rohde & Schwarz extends the functionality of the R&S SMBV100A vector signal generator by adding BeiDou/Compass capability to its integrated GNSS simulator. With the R&S SMBV-K107 option, the GNSS simulator now covers the BeiDou standard as well as the GPS, Galileo and GLONASS satellite navigation systems. The new option allows users to generate real-time scenarios with up to 24 BeiDou satellites. R&S SMBV-K107... read more

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Innovation: Hunting for GNSS Echoes

November 1, 2013By
Figure 1. ARTEMISA simulation platform architecture.

Analysis of Signal Tracking Techniques for Multipath Mitigation
Researchers involved with ARTEMISA describe their efforts to generate synthetic multipath of GPS L1 and Galileo E1 signals and to test different signal tracking techniques in a simulated receiver to see which techniques best minimize the effects of multipath on positioning solutions. read more

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Averna Emulator Receives Four-Diamond Ranking from Cable Industry

October 15, 2013By

Averna, developer of test solutions and services for communications and electronics device-makers worldwide, today announced it has received a Broadband Technology Report (BTR) Diamond Technology Review ranking of 4 “Diamonds” for its DOCSIS Channel Emulator (DCE). Now in its ninth year, the BTR Diamond Technology Reviews is a renowned industry program that was developed to recognize some of the top... read more

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Spirent Announces Carrier-Approved A-GNSS Record and Playback Solution for Mobile Device Testing

October 4, 2013By
SpirentA-GNSS-O2

Spirent Communications today announced the availability of carrier-approved Assisted GNSS Record and Playback capabilities on its Hybrid Location Technology Solution (HLTS).  This new A-GNSS Record and Playback capability provides unprecedented realism and repeatability by recording GNSS signals in the field and delivering synchronized assistance data over a radio access interface to test the A-GNSS positioning performance of mobile devices in... read more

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