Blind Calibration of Five-Port Receiver Based on Independent Component Analysis (ICA)
Résumé
Five-port direct conversion receiver has been
demonstrated as an interesting alternative for application in
software-defined radio since its design is simple and it can operate
in a wide range of frequencies. However, in order to carry out
in-phase and quadrature demodulation, the five-port receiver
must be calibrated for each frequency and modulation type. In
this paper, we evaluate the performance of a blind calibration
procedure based on Independent Component Analysis (ICA). The
experimental and simulation results show the effectiveness of the
FastICA algorithm when it is applied to the recovery of the
components s I (t) and s Q (t) of the baseband signal in a five-port
receiver.