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Inside GNSS: Engineering Solutions from the Global Navigation Satellite System Community
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GPS
November 13, 2007

GPS Market Studies Focus on High-Volume Devices

Three new market studies — from Berg Insight, ABI Research, and Markets and Research — focus on GPS chipsets and the high-volume consumer device markets that drive them, all predicting continued rapid growth.

Inside GNSS • Fall 2007

Fuzzy Time

Synchronization serves as a pacemaker for current and next-generation digital telecommunications networks, particularly cellular networks such as the CDMA2000 1xEV-DO system.

These networks with their large coverage areas, increased complexity, and high data rates call for precise and accurate time alignment of operations. For instance, according to IS-95/IS-2000 standard established by the Third Generation Partner Project 2 Technical Specification Group, CDMA network operators expect an accuracy of three microseconds per day from synchronization sources.

Inside GNSS • Fall 2007

Lightening the Data Processing Load

The last two decades have seen the evolution of increasingly sophisticated GNSS signal processing technology. These advances include such things as improved methods for acquiring and tracking a wide variety of new signal structures, advanced multipath mitigation techniques, the development of high-sensitivity receivers for reliable operation indoors and in urban canyons, high-speed processing to reduce time to first fix, and algorithms for improved ranging accuracy and attitude estimation.

Inside GNSS • Fall 2007

GPS/GPRS on the Road

GPS was introduced to much of the consumer market during the 1990s in the form of car navigation systems. This was the era of standalone navigation solutions.

Today, network-based navigation systems are common and, in the context of commercial vehicle tracking, usually required. One application in this field is fleet management for taxi companies. A human operator at the service center coordinates the pickup of the next customer by the closest vehicle.

Inside GNSS • Fall 2007

Reign of Point Clouds

Commercially available airborne LIDAR (LIght Detection And Ranging) systems have been deployed for more than a decade, and the technology has been widely accepted as a fast and efficient means of capturing topographic information.

The accuracy of a final 3D LIDAR “point cloud” is directly affected by the accuracy of the underlying positioning technology — typically a GPS/inertial navigation system — used to georeference the LIDAR measurements.

October 26, 2007

U.S. Department of Commerce Proposes Update to Office Overseeing GPS and Related PNT Activities

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.

Human Engineering • March 2006

Michael Braasch: Dr. Braasch’s Opus

Much like the lead character in “Mr. Holland’s Opus,” a 1995 movie about another talented teacher, Mike Braasch found out that life happens while you’re busy making other plans. Braasch, now the Thomas Professor of Electrical Engineering at Ohio University’s Russ College of Engineering and technology, was unaware of how fast and hard he would fall for the three compass points of his subsequent life: Soo, the electrical engineering classmate who married him; the global navigation satellite system community; and his students.

Thinking Aloud • Spring 2007

GNSS for the Masses

Oh, yes, to be sure — they are really impressive numbers: the steep upward curve of unit and dollar (or euro or ruble or renminbi) sales volumes now that GNSS has hit the big time.

Whether it’s $25 billion today or $68 billion in 2010, the worldwide market has really taken off since consumers have discovered — almost by accident, in many cases — the amazing power of GNSS-driven products and services.

Ah, consumers. The mass market.

Rich! We’ll all be rich beyond our wildest imaginings!

October 19, 2007

SiRF Goes "Green" with Location Ecosystem and "Killer Enabler"

At the premiere Location 2.0 Summit on October 23, SiRF Technology will roll out its “ecosystem” strategy for the location-based services (LBS) community, enabled by a set of SiRF-designed development tools, a test environment, and marketing support from the GNSS chip and software manufacturer.

Ventures • October 19, 2007

Hexagon Launches Acquisition of NovAtel Shares

Hexagon AB has launched a tender offer to acquire all the issued and outstanding common shares of NovAtel Inc., a Calgary, Alberta, Canada–based developer and manufacturer of OEM GNSS and related products, at a price per share of US$50 cash. Acting through its wholly owned subsidiary, Hexagon Canada Acquisition Inc., the Swedish technology company will keep its offer, which began October 19, open through November 27.

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