  We consider turbulent synchrotron emitting media that also exhibits Faraday
rotation and provide a statistical description of synchrotron polarization
fluctuations. In particular, we consider these fluctuations as a function of
the spatial separation of the direction of measurements and as a function of
wavelength for the same line-of-sight. On the basis of our general analytical
approach, we introduce several measures that can be used to obtain the spectral
slopes and correlation scales of both the underlying magnetic turbulence
responsible for emission and the spectrum of the Faraday rotation fluctuations.
We show the synergetic nature of these measures and discuss how the study can
be performed using sparsely sampled interferometric data. We also discuss how
additional characteristics of turbulence can be obtained, including the
turbulence anisotropy, the three dimensional direction of the mean magnetic
field. We consider both cases when the synchrotron emission and Faraday
rotation regions coincide and when they are spatially separated. Appealing to
our earlier study in Lazarian and Pogosyan (2012) we explain that our new
results are applicable to a wide range of spectral indexes of relativistic
electrons responsible for synchrotron emission. We expect wide application of
our techniques both with existing synchrotron data sets as well as with big
forthcoming data sets from LOFAR and SKA.
