NON-LINEAR ADAPTIVE SCHEME FOR CANCELLATION OF TRANSMIT OUT OF BAND EMISSIONS
摘要
<p>A method and apparatus for a non-linear adaptive scheme for transmit out of band emission cancellation is provided. Embodiments disclosed herein provide a method for removing unwanted transmitter emissions from a composite received signal. The method performs the steps of: extracting the I and Q samples from a modulator output; inputting the I and Q samples to a non-linear filter; applying weights to the non-linear filter outputs, combining the non-linear filter outputs to generate a broadband emission estimate; selecting a portion of a transmit emission in a desired portion of a receive band; subtracting an output of the non-linear filter from a composite signal; and feeding back a residual error to the non-linear filter; adapting the non-linear filter iteratively.</p>
申请公布号
WO2012075332(A1)
申请公布日期
2012.06.07
申请号
WO2011US62952
申请日期
2011.12.01
申请人
QUALCOMM INCORPORATED;RIMINI, ROBERTO;OMER, MOHAMMAD;BURKE, JOSEPH, PATRICK;HEIDMANN, PETER, D.
发明人
RIMINI, ROBERTO;OMER, MOHAMMAD;BURKE, JOSEPH, PATRICK;HEIDMANN, PETER, D.