Estimation of asymmetries between inphase and quadrature branches in multicarrier transmission systems

作者: Lars Brötje , Volker Kühn , Karl Dirk Kammeyer , Sven Vogeler

DOI:

关键词: Electronic engineeringQuadrature (mathematics)Orthogonal frequency-division multiplexingElectrical engineeringTransmission systemEngineeringTransmitterPreamble

摘要: Distortions of radio signals transmitted in data blocks an OFDM method, the distortions being caused by IQ asymmetries, can be estimated and subsequently equalized means specific reference symbols which are at transmitter end may part a preamble. The method used particularly advantageously direct-mixing receiver.