Channel simulator for mobile systems
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United States of America Patent
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Jul 29, 2003
Grant Date -
N/A
app pub date -
Sep 15, 2000
filing date -
Oct 21, 1997
priority date (Note) -
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Abstract
A device and a method at a mobile communication system which provide a flexible and realistic way of emulating the time dispersive qualities and the broadband frequency correlation qualities of a radio channel. The device includes two or more flexible delay modules, and each module is arranged to emulate a tap and a continuously varying tap attenuation can be attained to describe the variation of the radio channel over the time. The modules may be realized in SAW-technology, and continuously varying tap attenuation may be achieved by the utilization of PIN-diode attenuators.
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