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A Fully Digital Model for Kalman Filters

A Fully Digital Model for Kalman Filters

Q: Is it possible to define a fully digital state model for Kalman filtering?

A: The Kalman filter is a mathematical method, purpose of which is to process noisy measurements in order to obtain an estimate of some relevant parameters of a system. It represents a valuable tool in the GNSS area, with some of its main applications related to the computation of the user position/velocity/time (PVT) solution and to the integration of GNSS receivers with an inertial navigation system (INS) or other sensors.

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By Inside GNSS
GPS IIF-1 Satellite

GPS IIF-1 Satellite

FIGURE 1: Geographical overview of the 170 IGS stations tracking SVN62/PRN25 during its current 90-day checkout period. The blue curve illustrates the ground track of the spacecraft on August 9, 2010.

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

On May 27, 2010, the U.S. Air Force successfully launched the first satellite of the Block II “follow-on” (Block IIF) series, the fourth generation of GPS spacecraft that features more precise and powerful signals, an extended design life, and several other technical advances.

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By Inside GNSS
Map Africa 2010
August 14, 2010

Map Africa 2010

Map Africa 2010 conference and exhibition will take place at the Cape Town International Convention Centre (CTICC) in the center of Cape Town, South Africa on November 23-25, 2010.

The theme is "Geospatial Readiness for Building Africa." The conference will focus on the most pressing areas that contribute to the nation’s growth, such as infrastructure and utilities, cadastral mapping, land information management system (LIS), land policies, mining and exploration and emergency management.

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By Inside GNSS
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EIWAC 2010: 2nd ENRI Workshop on ATM/CNS

EIWAC 2010: 2nd ENRI Workshop on ATM/CNS

Japan’s Electronic Navigation Research Institute (ENRI) will present the second workshop on Communications, Navigation and Surveillance Systems for Air Traffic Management at the Akihabara Convention Hall in Tokyo on November 11 and 12, 2010.

Registration will close on October 30, 2010.

The theme is ForeSEE: Safety, Efficiency and Environment. The conference is free and will be held in English.

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By Inside GNSS
G-spatial EXPO 2010
August 13, 2010

G-spatial EXPO 2010

The theme of the G-spatial Expo is "When and Where," how geospatial information is changing our lives.The goal of the event is to promote space-based positioning, navigation and timing technologies and to inspire new businesses that use geospatial information.

It will take place at Pacifico Yokohama in Yokohama, Japan on September 19-21, where more than 30,000 visitors are expected during the run of the event.

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By Inside GNSS
TRANSNAV 2011: Marine Navigation and Safety of Sea Transportation

TRANSNAV 2011: Marine Navigation and Safety of Sea Transportation

The 9th TRANSNAV symposium will be held June 15-17, 2011 at Gdynia, Poland, a seaport and resort city on the south coast of the Baltic.

The biennial event is an opportunity for scientists and professionals in navigation, transport, ocean engineering and maritime technology to share knowledge and research on all aspects of maritime navigation and safety of sea transportation. The symposium is held in English.

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By Inside GNSS
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Location & Beyond Summit 2010 Features Location-Aware Innovation Awards
August 12, 2010

Location & Beyond Summit 2010 Features Location-Aware Innovation Awards

Wireless pioneer Andrew Seybold and Kanwar Chada, founder of SiRF Technology, will select the finalists for the People’s Choice awards for best location innovation at the 2010 Location & Beyond Summit on October 6. The event focuses on the "transformative effects of connecting everything and everyone, everyplace." 

The four-year-old summit — formerly Location 2.0 — will be held at the St. Regis Hotel in San Francisco during the CTIA Wireless Enterprise and Applications 2010 conference.

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By Inside GNSS
Locations & Beyond Summit 2010

Locations & Beyond Summit 2010

The Locations & Beyond Summit — a four-year-old event with a new name — will be held at the St. Regis Hotel in San Francisco on October 6, 2010, during the CTIA Wireless Enterprise and Applications 2010 conference.

Organizer CSR says the event will focus on the " transformative effects of connecting everything and everyone, everyplace." Panels and discussions are aimed at developers of new location-aware products,applications, services and technologies. 

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By Inside GNSS
GPS IIF Satellite Reaches Final Orbital Location
August 10, 2010

GPS IIF Satellite Reaches Final Orbital Location

Officials from the Air Space Space and Missile Systems Center’s GPS Wing announced today (August 10) that the first GPS IIF satellite (SVN-62) arrived on-station August 1. This indicates that the satellite is in its designated orbital position and ready for its final phase of on-orbit checkout and testing, to be completed before September. The satellite will then be cleared to serve navigation and timing users as part of the operational GPS constellation.

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By Inside GNSS
Aldacom Offers GPS/Linux PC/GPRS Breadboard

Aldacom Offers GPS/Linux PC/GPRS Breadboard

Aldacom GmbH, of Neu-Isenburg, Germany, recently announced the debut of the AldaLogic C10/3, a breadboard containing an embedded Linux PC on a surface measuring 104 x 63 millimeters.

The unit also contains a Quad-band GPRS module and SiRF3 GPS module, as well as interfaces for USB, RS232 and Ethernet components. An SD-card reader enables expansion of the standard 4 Mb of flash memory.

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By Inside GNSS
Firmware Update for NovAtel L1 OEMStar Receiver

Firmware Update for NovAtel L1 OEMStar Receiver

NovAtel Inc. recently announced the release of Version 1.011 firmware for its L1 OEMStar GNSS (GPS+GLONASS+SBAS) receiver, which the company says is designed to provide improved PDP and GL1DE filter performance, improved satellite tracking in low signal level environments, improved satellite-based augmentation system (SBAS) performance when operating outside of the standard grid map, and improved time to first fix.

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By Inside GNSS
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