Iterative estimation and equalization of asymmetries between inphase and quadrature branches in multicarrier transmission systems

摘要

Distortions of radio signals transmitted in data blocks in an OFDM method, the distortions being caused by transmitter- or receiver-end IQ asymmetries and by channel distortion, can be estimated and equalized by means of an iteration method. The method can be used particularly advantageously in a direct-mixing receiver.