Frequency domain analysis: example Smets and Wouters (2007)

Hey everybody,
Trying to replicate the paper of Qu and Tkachenko (2012) Frequency Domain Analysis of Medium Scale DSGE Models with Application to Smets and Wouters (2007), the problem found is about the non-identification curves that are used as input in the identification of the model.
Anyone has an idea about the replication code of these curves for the SW model?
Many thanks in advance.