26 Feb '15, 9pm

ESC Boston 2015 Sneak Peek -- Open Source Electromagnetic Trackers - EE Times

ESC Boston 2015 Sneak Peek -- Open Source Electromagnetic Trackers - EE Times

A six-degree-of-freedom electromagnetic tracker comprises a transmitter coil trio, a receiver coil trio, and an electronics package. The electronics drives the transmitter coils at audio frequencies and measures the voltages induced in the receiver coils. The embedded processor in the electronics package calculates the position and orientation of the receiver coils with respect to the transmitter coils, for separations of a meter or less. The processor then outputs the position and orientation results to the host system. Such trackers have been used in military augmented-reality systems since before 1980, and more recently in medical applications, digitizers, and virtual-reality systems. The embedded calculation algorithms are math-intensive, involving Fourier transforms, complex numbers, matrices, complex matrices, and quaternions. In jargon, I describe the algorithms in ...

Full article: http://www.eetimes.com/author.asp?section_id=216&doc_id=1...

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Android For Work Brings Google To The Office - EE Times

Android For Work Brings Google To The Office - ...

eetimes.com 26 Feb '15, 6am

Google aims to make Android better suited to the demands of businesses. Google on Wednesday introduced Android for Work , ...

LTE-U for Small Cells Improves Wi-Fi Environment - EE Times

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eetimes.com 27 Feb '15, 10am

In LTE-U, LTE technology over an unlicensed band is paired with a "licensed" LTE signal as an anchor preserving the necess...

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All material on this site Copyright © 2005 - 2015 ITmedia Inc. All rights reserved. This site contains articles under lice...

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All material on this site Copyright © 2005 - 2015 ITmedia Inc. All rights reserved. This site contains articles under lice...