COHERENT TRACKING FOR FM IBOC RECEIVER USING A SWITCH DIVERSITY ANTENNA SYSTEM
摘要
A method is provided for coherently tracking a radio signal including a plurality of digitally modulated reference subcarriers. The method comprises the steps of receiving symbols transmitted on the reference subcarriers, combining the reference subcarrier symbols with a known reference sequence conjugate to produce a plurality of samples, median filtering the samples to produce filtered samples, and smoothing the samples for each of the reference subcarriers over the plurality of reference subcarriers to produce a coherent reference signal estimate for each of the subcarriers. A receiver for coherently tracking a radio signal including at least one digitally modulated reference carrier is also provided.
申请公布号
WO2005050865(A2)
申请公布日期
2005.06.02
申请号
WO2004US37944
申请日期
2004.11.12
申请人
IBIQUITY DIGITAL CORPORATION;KROEGER, BRIAN, WILLIAM;PEYLA, PAUL, JAMES;BAIRD, JEFFREY, S.
发明人
KROEGER, BRIAN, WILLIAM;PEYLA, PAUL, JAMES;BAIRD, JEFFREY, S.