product design

March 18, 2011

NovAtel Announces FlexPak6 Enclosure Featuring OEM6 GNSS Technology

NovAtel FlexPak6

NovAtel Inc. has announced the launch of  its FlexPak6 GNSS enclosure, the first product to house the company’s new OEM628 multi-constellation receiver.

According to the Calgary, Alberta, Canada–based company, the 120-channel FlexPak6 is designed for easy integration into new user equipment and is capable of tracking all current and upcoming GNSS satellite signals, including GPS L1/L2/L2C/L5 (code and carrier phase), GLONASS L1/L2, Galileo E1/E5a/E5b/Alt-BOC, Compass/BeiDou-2 and satellite-based augmentation systems.

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By Inside GNSS
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March 14, 2011

Coherent Integration Time Limits

Equation: signal variance for a “ring of scatterers” model

Indoor GNSS propagation environments are characterized by multiple reflected signal paths (multipath) terminating at the receiver. Consequently, the received signal’s amplitude, phase, and perceived angle of arrival attributes vary randomly as the receiver moves. This has created significant interest among receiver designers and manufacturers to develop powerful processing for GNSS handsets such that these can operate effectively in indoor faded environments.

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By Inside GNSS

The Civilian Battlefield

Figures 1 & 2

For the complete story, including figures, graphs, and images, please download the PDF of the article, above.

Growing dependence on GNSS for positioning, navigation, and timing (PNT) has raised a parallel concern about the potential risks of signal interference. The popular press has recently highlighted accounts of car thieves using GPS jammers, solar flares pumping out L-band radiation, and faulty television sets causing havoc to GPS receivers across an entire harbor.

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By Inside GNSS

GNSS Inside Mobile Phones

Figure 1 & Table 1

For the complete story, including figures, graphs, and images, please download the PDF of the article, above.

Recent years have seen GPS receivers built in as a standard feature in many consumer products. A growing number of mobile phones, personal navigation devices, netbooks and tablets are equipped with GPS receiver chips and navigation software that enable consumers to navigate from A to B or find their nearest coffee shop. According to Berg Insight, annual shipments of GPS-equipped mobile phones are estimated to reach 960 million devices in 2014.

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By Inside GNSS
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February 16, 2011

Hemisphere GPS: China OEM Alliance, New GPS Compass Products

H102 GPS Compass

Hemisphere GPS has announced an OEM alliance with a Chinese manufacturer of agricultural, construction, and power machinery equipment as well as the release of two compact GPS compass products.

The Calgary, Alberta, Canada–based company’s alliance with YTO Group Corporation, headquartered in Luoyang City, China, is part of Hemisphere GPS’s to expand its operations in the international realm.

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By Inside GNSS
January 30, 2011

Spectracom Launches GSG-55 GPS/SBAS Constellation Simulator

Pendulum GSG-55 Simulator

Spectracom has announced its new 16-channel GPS constellation simulator, the Pendulum GSG-55.

The latest in the Pendulum line of GPS receiver test instruments, the GSG-55 is able to simulate Satellite-Based Augmentation Systems (SBAS), such as the U.S. Wide Area Augmentation System and the European Geostationary Navigation Overlay Service (EGNOS).

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By Inside GNSS

JAXA Selects Spirent Simulator for QZSS Receiver Testing

Spirent Communications’ Positioning Technology Division, Paignton, UK, has announced that the Japanese Aerospace Exploration Agency (JAXA) has selected Spirent’s GSS8000 Multi-GNSS Constellation Simulator to support further development of the Quazi-Zenith Satellite System (QZSS) program.

Responsible for the development of the initial QZSS user equipment, JAXA is using the GSS8000 to verify QZSS receiver performance.

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By Inside GNSS
January 25, 2011

Lockheed Martin to Test GPS III in Virtual World

Collaborative Human Immersive Laboratory (CHIL) illustration (Lockheed Martin)

GPS III contractor Lockheed Martin has integrated several virtual reality technologies in a new Collaborative Human Immersive Laboratory (CHIL) in Littleton, Colorado, which will be used to validate and test next-generation GPS and other space programs.

With CHIL, Engineers and technicians can explore satellite designs and functions, troubleshoot and fine-tune them in a virtual world before building them in physical space.

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By Inside GNSS
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