ZDNet Definition for: GNSS

Additional Resources

ReMa to the Rescue

ReMa is a Requirements Management software tool developed at Accord, which was used to manage the design and requirements of NexNav. The NexNav software and the programmable FPGA were developed for Level B criticality where every design, requirement, and configuration management objective of DO-178B and DO-254 had to be satisfied....

Tags: Software, Requirement, Accord Software & Systems, ReMa, Productivity, Tools & Techniques, Management

White papers 2009-01-01

Can we trust our GPS devices?

In recent years, we have become increasingly dependent on applications using the Global Positioning System GPS, such as railway control, highway traffic management, emergency response or commercial aviation. But in a very short news release, the American Geophysical Union AGU warns us that we can't always trust our GPS gadgets...

Tags: Satellite, Occultation, GPS, Handhelds, Consumer Electronics, Personal Technology, Hardware, Roland Piquepaille

Blog posts 2008-06-10

Ad-Hoc Wireless Sensor Positioning in Hazardous Areas

This paper investigates the capability of GNSS aided smart sensor network positioning based on Wireless Local Area Network WLAN signals incorporating access points, to monitor 3D deformation associated with volcanic activity and other comparable hazardous events. While a small number of GNSS receivers provide the coordinate and time references, low-cost...

Tags: Positioning, Sensor, Wireless, Branding, Marketing

White papers 2008-06-10

Implementation of Hardware RAID and LVM-Based Large Volume Storage on Global Data Center System of International GNSS Service

High performance and reliability of the storage system to handle a very large amount of data has been become very important. Many techniques have been applied on the various application systems to establish very large capacity storage that satisfy the requirement of high I/O speed and physical or logical failure...

Tags: Data Center, Storage System, Storage, Data Centers, RAID, Storage Management, Hardware, Data Management

White papers 2007-04-25

Mrera (Minimum Range Error Algorithm): RFID - GNSS Integration for Vehicle Navigation in Urban Canyons

A new GPS positioning algorithm for vehicle tracking namely the "Minimum Range Error Algorithm" MRERA was proposed by E. Mok and L. Lam, to track vehicles in dense high-rise environments without the use of dead reckoning, and it can also be used for general geolocation positioning applications. With this algorithm,...

Tags: Algorithm, Vienna University, Positioning, RFID, Integration, Branding, Engineering, GPS, Marketing, Consumer Electronics, Personal Technology

White papers 2007-04-11

Integration of RFID, GNSS and DR for Ubiquitous Positioning in Pedestrian Navigation

Location determination of pedestrians in urban and indoor environment can be very challenging if GNSS signals are blocked and only pseudorange measurements to less than four satellites are available. Therefore a combination with other wireless technologies for absolute position determination and Dead Reckoning DR for relative positioning has to be...

Tags: Environment, Positioning, Disaster Recovery, Integration, CPGPS, RFID, Wireless And Mobility, Security, Biometrics

White papers 2007-01-01