MPSK -problem with MATLAB code

[shafqatabbas]

MPSK

hello mate,

i tried the program and it is not working for me. MATLAB gave me:

??? Undefined variable "modem" or class "modem.pskmod".

does it have to be modem function?? can I use something else to get it working??
can I take away the following: pulse shaping, downsample stages?? is it ok??

thanks in advance

 

[Aya2002]

because you are using an old version of matlab, see the following changes to the new versions: