First proof-of-principle results are presented from the coupling of anumerical (Landau-fluid) turbulence code and three two-dimensionalreflectometer simulation codes (finite-difference time domain full-wave,time-invariant network full-wave, and physical optics). With a view tovalidating the numerical turbulence code, the results are favourably comparedwith real reflectometer signals from an L-mode edge discharge in theASDEX Upgrade tokamak.