  We describe a simple but effective iterative procedure specifically designed
to destripe Q and U Stokes parameter data as those collected by the SPOrt
experiment onboard the International Space Station (ISS). The method is general
enough to be useful for other experiments, both in polarization and total
intensity. The only requirement for the algorithm to work properly is that the
receiver knee frequency must be lower than the signal modulation frequency,
corresponding in our case to the ISS orbit period. Detailed performances of the
technique are presented in the context of the SPOrt experiment, both in terms
of added rms noise and residual correlated noise.
