Wireless receiver`s in-phase and quadrature phase imbalance correcting method for signal processing field, involves correcting imbalance based on estimation of imbalance, according to adaptative algorithm, to obtain corrected estimation

摘要

The method involves estimating in-phase and quadrature phase (IQ) imbalance based on residual variations of imbalance from a previous IQ imbalance estimation. The IQ imbalance is estimated based on an adaptative algorithm from new criteria less sensitive to a frequency offset. The frequency and/or time offsets are corrected. The IQ imbalance is corrected based on the imbalance estimation to obtain a corrected IQ imbalance estimation. Independent claims are also included for the following: (A) a method of correcting a signal received and digitized by a wireless receiver (B) a receiver device including an in-phase and quadrature phase imbalance correcting unit (C) a computer program including instructions for implementing a method of correcting an in-phase and quadrature phase imbalance of a receiver (D) a software product including a data medium susceptible to be read by a computer system, permitting implementation of a method of correcting an in-phase and quadrature phase imbalance of a receiver.