mtroom.in

这是一个 York大学开发的FDTD代码。很好用的工具

CE A 3x5x4 m room
DM 30 50 40
BR -0.9  -0.9  -0.9 -0.9 -0.9 -0.9 

#Excite a z-polarised elemental dipole 
EX 5 5 15 15 10 10 3 1.0 3 
# Take a couple of outputs
OP 10 10 1  40 40 1  10 20 10
GE
#You will need to adjust the number of iterations to ensure that the energy has decayed by 20dB or more
NT 5000
OT 1 5000
MS 0.1
PP 10 10 40 40  10 20 3
EN

#Notes:
# I set the external boundary reflection coefficients to -0.9 which is a rather lossy "metal" wall
# real metals are more like -0.9997 which results in much higher Q and longer run-times
# You might like to other source/output positions
# You could try damping the room with absorber or ferrite tiles