IAP_harmonic_Diab_JSV.m
FDTD code for the impedance tube case, using the IAP method for the TDABC. The excitation is harmonic. It can be used to plot Figs. 8-9.

IAP_broadband_Diab_JSV.m
FDTD code for the impedance tube case, using the IAP method for the TDABC. The excitation is broadband. It can be used to plot Figs. 10-11.