Racelogic to Launch LabSat3 at ION GNSS+

September 11, 2013By
Racelogic LabSat3 simulator.

LabSat, the GPS record, replay, and simulation brand produced by Racelogic in the UK, is about to be augmented with the introduction of LabSat3. The key feature of the new product is its simplicity. It is, essentially, a single-box device that incorporates a GPS record-and-replay system without the need for a laptop or PC. Racelogic has designed the LabSat3 with... read more

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Averna, National Instruments Team on Recording and Playback of RF Signals

September 4, 2013By

Averna, developer of test solutions and services for communications and electronics device-makers worldwide, now offers RF Studio for National Instruments Software Defined Radio Platform (USRP), converting the USRP into a portable and cost-effective RF system for the recording and playback of real-world GNSS signals. National Instruments USRP is an affordable, PC-hosted platform used with NI LabVIEW system design software to... read more

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Leica Camera Integrates u-blox GPS into M-System Series

September 3, 2013By

Swiss-based u-blox has been chosen by Leica Camera as provider of GPS technology for its premium M-System camera and accessory series. Leica, which makes high-end and professional cameras, has integrated u-blox’ NEO GPS module into its new Multifunctional Handgrip M. The geotagging feature injects location data directly into each photo’s Exif header (Exchangeable image file format), allowing photos to be... read more

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The System: IRNSS Signal Close up

September 1, 2013By and

IRNSS Signal Close up By Richard Langley, Steffen Thoelert, and Michael Meurer The spectrum of signals from IRNSS-1A, the first satellite in the Indian Regional Navigation Satellite System, as recorded by German Aerospace Center researchers in late July, appears to be consistent with a combination of BPSK(1) and BOC(5,2) modulation. Figure 1 shows that, centered at 1176.45 MHz, the signal... read more

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Innovation: Under Cover

September 1, 2013By
FIGURE 1. Artist’s impression of the synthetic-aperture GNSS system for surveying in a forest.

Synthetic-Aperture GNSS Signal Processing
We take a look at a novel GNSS signal-processing technique, which uses the principles of SAR to improve code and carrier-phase observations in degraded environments such as under forest canopy. The technique can simultaneously reject multipath signals while maximizing the direct line-of-sight signal power from a satellite. Along with a specially programmed software receiver, it uses either a single conventional antenna mounted, say, on a pedestrian’s backpack for GIS applications or a special rotating antenna for high-accuracy surveying. Want to learn more? Read on. read more

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Signal Quality of Galileo, BeiDou

September 1, 2013By
Figure 1. 30-meter high-gain antenna.

Future positioning and navigation applications of modernizing and newly established GNSSs will require a higher degree of signal accuracy and precision. Thus, rigorous and detailed analysis of the signal quality of recently launched satellites, including the discovery of any possible imperfections in their performance, will have important implications for future users. read more

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IFEN and WORK Microwave Offer BeiDou-2 Support, Enhancements for NavX-NCS GNSS Simulators

August 15, 2013By

The NavX-NCS GNSS multi-frequency simulator now supports China’s BeiDou-2 navigation satellite system. BeiDou support is a key enhancement in software update V.1.9 for the NavX-NCS GNSS multi-frequency simulator product line, by IFEN  and  WORK Microwave. Leveraging new features and functionalities, users have the flexibility to support a wide range of constellations, frequencies, and channels for research and development of GNSS... read more

TerraStar GNSS Establishes Base at Nottingham University’s GRACE Facility

August 12, 2013By

TerraStar GNSS, a supplier of precision positioning services for land and near-shore applications, has established a base at Nottingham University’s GNSS Research and Applications Centre of Excellence (GRACE). GRACE operates operates under the auspices of its Institute of Engineering Surveying & Space Geodesy (IESSG). TerraStar GNSS maintains and controls a worldwide network of more than 80 GPS and GLONASS DGNSS... read more