Combined RF equalizer and I/Q imbalance correction
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United States of America Patent
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Apr 4, 2017
Grant Date -
May 9, 2013
app pub date -
Oct 26, 2012
filing date -
Oct 27, 2011
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Abstract
Software implementations are provided for performing IQ imbalance correction and/or RF equalization. An input signal, x, is processed in software by executing a vector convolution instruction to apply the input signal, x, to a first complex FIR filter that performs one or more of RF equalization and IQ imbalance correction; and executing a vector convolution instruction to apply a conjugate x* of the input signal, x, to a second complex FIR filter that performs the one or more of RF equalization and IQ imbalance correction, wherein the second complex FIR filter is in parallel with the first complex FIR filter. The first and second complex FIR filters have complex coefficients and the input signal comprises a complex signal.
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