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LTE Testing Challenges

February 25, 2009 10:46 am | Comments

Working closely with the test equipment vendor is required in order to synchronize feature implementation, reference specifications and timely delivery of the test equipment software. By Paul Gooding, Rohde & Schwarz click to enlarge Figure 1.

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Noise Elimination Power Converter Control Circuit

February 25, 2009 10:46 am | Comments

Grounding and care in layout is the key to keeping noise out of the control circuit and allowing correct operation. Grounding and care in layout is the key to keeping noise out of the control circuit and allowing correct operation. By John Bottrill, Texas Instruments click to enlarge Figure 1.

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GPS Environmental Challenges Drive Common Test Practices

January 30, 2009 9:05 am | Comments

A receiver's position accuracy is a fundamental challenge of satellite navigation system. As a result, GPS receiver designers must perform a combination of measurements to ensure the device will perform as expected. David A. Hall, National Instruments Geocaching involves discovering various "caches" whose coordinates can be found on the Web and whose contents are located all over the world.

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Addressing the Challenges in the Design of High-Performance FOTA Diff Engines

January 30, 2009 9:05 am | Comments

Firmware over-the-air (FOTA) technology makes it possible to detect bugs, defects and design flaws after the handset lands in the subscribers' hands. By Jinsheng Gu, InnoPath Software click to enlarge Simplified FOTA Architecture.

F-RAM Moves to Automotive Infotainment Applications

January 30, 2009 9:05 am | Comments

Protecting infotainment dynamic data is essential. The unique advantage of F-RAM guarantees higher availability & performance. By Duncan Bennett, Ramtron International The use of non-volatile ferroelectric RAM (F-RAM) in automotive applications began with airbag applications. This type of safety critical application was click to enlarge Figure 1.

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The Development of a Standard Hand Phantom for Wireless Performance Testing: Part 2

January 14, 2009 10:32 am | Comments

This is part two of a three part series. Read part one By Dr. Michael D. Foegelle, ETS-Lindgren; Kevin Li, Nokia Corp.; Andrew Pavacic, Paul Moller, Motorola, Inc. Defining the Grip An informal survey of advertised handsets on the market revealed that they could generally be separated into two categories by width.

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Testing Challenges of SDR's

December 30, 2008 10:24 am | Comments

A new modeling methodology combines FPGAs and detailed circuit-level modeling in a design-to-test flow. By Greg Jue and David Leiss, Agilent Technologies click to enlarge Figure 1. This high-level design flow begins with the design of key algorithms which can be quickly evaluated in simulation to verify system performance with just a handful of simulation blocks.

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Using Next-Generation Non-Stationary Noise Suppression to Enhance Voice Quality

December 30, 2008 6:41 am | Comments

Emulating the way that the human hearing system characterizes and groups the audio stream into sound sources proves to be an extremely efficient and accurate way to suppress both stationary and non-stationary noise. By Lloyd Watts, Founder and CTO, Audience click to enlarge Figure 1a.

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Internet Addiction – Does it Really Exist?

December 30, 2008 6:41 am | Comments

By Nancy Maas, Editor-In-Chief nancy.maas@advantagemedia.com Did you know that compulsive e-mailing and text messaging could soon become classified as an official brain disease? An editorial in the American Journal of Psychiatry a few months back said that Internet addiction - including excessive gaming and e-mail/text messaging - is a common compulsive-impulsive disorder that should be added to psychiatry's official guidebook of mental disorders.

Industrial Community Boosts Productivity Online

December 4, 2008 5:11 am | Comments

By Angela Hribar, Chief Sales and Marketing Officer GlobalSpec, Inc. A key measure of success for OEMs is their ability to get new products to market quickly. Early on, wireless manufacturers must find and source the right components and parts during product design and manufacturing stages to meet demanding deadlines.

Developing a Standard Hand Phantom for Wireless Testing

November 10, 2008 11:23 am | Comments

A standardized hand phantom used together with the SAM head phantom for radiated performance testing mirrors real-world use. Dr. Michael D. Foegelle, ETS-Lindgren, Kevin Li, Nokia Corp., Andrew Pavacic and Paul Moller, Motorola, Inc. Figure 1. The resulting kinematic CAD model.

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Cellular M2M: Generates Profit and Business Opportunities

September 22, 2008 12:45 pm | Comments

By Nancy Maas, Editor-in-Chief?nancy.maas@advantagemedia.com M2M can be described as a three letter abbreviation with multiple meanings. To some, it can mean “mobile to mobile” or “mobile to machine.” For the purposes of this discussion, it means “machine-to-machine”, and relates to the remote monitoring and control of machines.

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User-Programmable FPGAs Improve Wireless Test Applications

September 22, 2008 12:45 pm | Comments

As wireless standards continue to evolve, software-defined ?test systems will continue to evolve with them. By Luke Schreier, National Instruments As the proliferation of wireless standards continues, the idea of using software-defined measurement capability has become a necessity as opposed to a matter of click to enlarge Figure 1.

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Testing LTE

September 22, 2008 12:45 pm | Comments

Testing LTE Design simulation can be useful in addressing LTE design and verification challenges but requires consideration in selecting the appropriate model abstraction for the given phase of the design cycle. By Greg Jue, Agilent Technologies Emerging standards such as 3GPP Long Term Evolution (LTE) present a number of design and verification challenges for system engineers.

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Social Networking Gains Popularity with All Ages

September 8, 2008 6:46 am | Comments

Nancy Maas Editor-in-Chief Social Networking, Mobile Social Networking, MySpace, Facebook, Friendster, Couch Surfing (I love that one) — what exactly are these things and why are they now such a significant part of people’s lives, particularly teenagers? I had to get a “crash course” recently from my sixteen year old niece to find out.

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