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From: Steve Amphlett on 23 Apr 2010 04:55
"Abbas Haider" <wetway(a)yahoo.com> wrote in message <hqrl3u$br8$1(a)fred.mathworks.com>...
> I am supposed to design a raised cosine pulse shaping filter. as per the given instructions at Mathworks when i try to compile the code (even the given examples) i get the following error.
> ____________ERROR_____________
> >> num = rcosine(1,8,'sqrt'); % Transfer function of filter
> ??? Undefined command/function 'firrcos'.
>
> Error in ==> rcosfir at 89
> b=firrcos(rate*(N_T(2)-N_T(1)),1/(2*T),r,rate/T,'r','sqrt',-N_T(1)*rate)*sqrt(rate);
>
> Error in ==> rcosine at 87
> num = rcosfir(R, Delay, FsDFd, 1/Fd, filt_type);
> ________________________________
> Can somebody pls help me?
>
> Thanks,

Do you have the Signal Processing Toolbox?
From: Abbas Haider on 23 Apr 2010 05:18
I am not sure, if i have Signal processing toolbox.. how to check if i have it or not with my matlab package?

Thanks,
TideMan <mulgor(a)gmail.com> wrote in message <1034d2eb-f66d-404a-8c66-e80793ae8a8a(a)p35g2000prf.googlegroups.com>...
> On Apr 23, 8:18 pm, "Abbas Haider" <wet...(a)yahoo.com> wrote:
> > I am supposed to design a raised cosine pulse shaping filter. as per the given instructions at Mathworks when i try to compile the code (even the given examples) i get the following error.
> > ____________ERROR_____________>> num = rcosine(1,8,'sqrt'); % Transfer function of filter
> >
> > ??? Undefined command/function 'firrcos'.
> >
> > Error in ==> rcosfir at 89
> >     b=firrcos(rate*(N_T(2)-N_T(1)),1/(2*T),r,rate/T,'r','sqrt',-N_T(1)*rate)*sqrt(rate);
> >
> > Error in ==> rcosine at 87
> >     num = rcosfir(R, Delay, FsDFd, 1/Fd, filt_type);
> > ________________________________
> > Can somebody pls help me?
> >
> > Thanks,
>
> Did you read the error message?
> It says quite clearly that it cannot find the function firrcos
From: Abbas Haider on 23 Apr 2010 05:21
TideMan <mulgor(a)gmail.com> wrote in message <1034d2eb-f66d-404a-8c66-e80793ae8a8a(a)p35g2000prf.googlegroups.com>...
> On Apr 23, 8:18 pm, "Abbas Haider" <wet...(a)yahoo.com> wrote:
> > I am supposed to design a raised cosine pulse shaping filter. as per the given instructions at Mathworks when i try to compile the code (even the given examples) i get the following error.
> > ____________ERROR_____________>> num = rcosine(1,8,'sqrt'); % Transfer function of filter
> >
> > ??? Undefined command/function 'firrcos'.
> >
> > Error in ==> rcosfir at 89
> >     b=firrcos(rate*(N_T(2)-N_T(1)),1/(2*T),r,rate/T,'r','sqrt',-N_T(1)*rate)*sqrt(rate);
> >
> > Error in ==> rcosine at 87
> >     num = rcosfir(R, Delay, FsDFd, 1/Fd, filt_type);
> > ________________________________
> > Can somebody pls help me?
> >
> > Thanks,
>
> Did you read the error message?
> It says quite clearly that it cannot find the function firrcos

--
but firrcos and rcosfir are the functions that are built in.. and they are called from within rcosine..
From: Steve Amphlett on 23 Apr 2010 06:26
"Abbas Haider" <wetway(a)yahoo.com> wrote in message <hqroq3$b90$1(a)fred.mathworks.com>...
> TideMan <mulgor(a)gmail.com> wrote in message <1034d2eb-f66d-404a-8c66-e80793ae8a8a(a)p35g2000prf.googlegroups.com>...
> > On Apr 23, 8:18 pm, "Abbas Haider" <wet...(a)yahoo.com> wrote:
> > > I am supposed to design a raised cosine pulse shaping filter. as per the given instructions at Mathworks when i try to compile the code (even the given examples) i get the following error.
> > > ____________ERROR_____________>> num = rcosine(1,8,'sqrt'); % Transfer function of filter
> > >
> > > ??? Undefined command/function 'firrcos'.
> > >
> > > Error in ==> rcosfir at 89
> > >     b=firrcos(rate*(N_T(2)-N_T(1)),1/(2*T),r,rate/T,'r','sqrt',-N_T(1)*rate)*sqrt(rate);
> > >
> > > Error in ==> rcosine at 87
> > >     num = rcosfir(R, Delay, FsDFd, 1/Fd, filt_type);
> > > ________________________________
> > > Can somebody pls help me?
> > >
> > > Thanks,
> >
> > Did you read the error message?
> > It says quite clearly that it cannot find the function firrcos
>
> --
> but firrcos and rcosfir are the functions that are built in.. and they are called from within rcosine..

>> which firrcos
<snip>\toolbox\signal\signal\firrcos.m

And if you type in "ver", the listing will show which toolboxes you are licensed for. If it doesn't include "Signal Processing Toolbox", you're SOL.
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