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Assisted-GPS provides faster data acquisition
Use of A-GPS can result in faster acquisition of signals, facilitating navigation that would otherwise be impossible |
2006-01-16 |
Bring GPS to mobile handsets
If GPS in mobile phones is going to be a success, it is vital that designs are sufficiently intelligent to handle the challenging mobile environment—both in terms of the technological hurdles and the penetration of the mobile handset market. That means GPS has to be low power, low cost and able to deliver on performance |
2007-08-16 |
GPS technology empowers 3G wireless handsets
Qualcomm uses a GPS-based solution to improve positioning availability and accuracy in the wireless sector |
2004-07-16 |
Testing GPS functions of mobile phones
Development and conformance test requirements for A-GPS-based cellphones, time-to-market pressures and the need for field trials have compelled OEMs to perform in-field testing of cellphones |
2007-05-16 |
Integrating GPS receivers with passive antennas
The impact of the direct integration of passive antennas on the GPS system performance is analyzed. The low-gain low noise radio front-end stage, the low levels of inter-system interference and the optimum loading of the analog-to-digital converter enabled the direct connection between the GPS radio and the passive antenna with high sensitivity |
2003-12-01 |
GPS low-noise amplifier design made easy with MMIC
Learn the possible ways of putting MMIC-based GPS low-noise amplifier designs under software control |
2005-08-16 |
GPS chips navigate mobile phones
GPS chips in handsets will explore applications ranging from locating individuals placing emergency calls to information customized to the user's whereabouts |
2005-07-18 |
Real-time GPS around the corner
3G wireless GPS may seem far-fetched, but the technical capabilities needed to pull it off are available now and in the near future, designers will utilize these capabilities into the hardware and software required to further innovative mobile GPS |
2001-04-15 |
Re-architecting GPS for mobile phones
Existing GPS technologies were designed for in-car personal navigation devices (PNDs), for which power savings are not so important, and as GPS moves into the mobile handset, there is a need to rethink how and where the technology is implemented and how the GPS functions are controlled |
2008-04-01 |
GPS Receiver Modules Ease Overall System Design
This paper focuses on the advantages of the use of GPS receiver modules for the design of new and innovative products |
2001-03-30 |
Building a GPS device on conventional PCBs
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2002-05-01 |
Location services expand scope
With the deployment of GPS and network-based locating methods, local positioning services are emerging as one of the most exciting topics in mobile communications |
2001-05-16 |
Smart antennas: A design alternative
With integrated GPS technology, today's smart antennas drive new alternatives in remote tracking |
2005-02-16 |
Self-synchronizing a CDMA cellular network
This paper describes the concept of utilizing the normal messaging of mobile stations operating in an IS-95 CDMA network to transfer time between various BTSs (Base Station Transceivers). IS-95 is a time-synchronous system in that all BTSs operate from a common time reference, which is specified to be the same as the time scale used by the Global Positioning System (GPS). This design choice provides the CDMA network with several advantages over an asynchronous design, but does require some means to distribute time throughout the network |
1999-09-09 |
DSP power propels next-generation wireless
The enhancements of wireless design offers new opportunities with tough tech challenges for designers. However, DSPs will remain a fundamental part of wireless design. |
2001-04-15 |
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