[arts-users] Questions about the instrument's true spectral response function

[li zhuoyang via arts_users.mi]

Dear all
 
I used f_gridMetMM and sensor_responseMetMM to simulate the brightness 
temperatures for the 22 channels of ATMS, but I found that the 
channel2fgrid_weights output by f_gridMetMM seems to be a rectangular window 
response. Could you please advise on which method I should use to input the 
actual spectral response function of ATMS into ARTS to achieve a simulation of 
the instrument's true response?
 
Sincerely looking forward to your reply!
 
Yours,
 Li Zhuoyang