Transmission/reception arrangement and method for reducing nonlinearities in output signals from a transmission/reception arrangement
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United States of America Patent
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May 26, 2009
Grant Date -
Feb 16, 2006
app pub date -
Feb 2, 2005
filing date -
Feb 2, 2004
priority date (Note) -
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Abstract
The invention proposes a transmission/reception arrangement (1) which contains a respective distortion unit (5, 6) for the transmission and reception paths (2, 3) and also a calibration apparatus (7). By sending a test signal in an operating mode for calibration and returning the test signal processed in the transmission path (2) to the reception path, it is possible to evaluate the error signals in the transmission and reception paths. In line with the principle proposed, this is done by evaluating the spectral components of the returned received signal which each represent single sources of error in the transmission or reception path. This allows calculation of calibration parameters for suppressing these errors both in the transmission path and in the reception path.
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