Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.


Math Forum » Discussions » Software » comp.soft-sys.matlab

Topic: commBCHEncoder/commBCHDecoder
Replies: 34   Last Post: Apr 19, 2014 3:48 PM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Leonardo O. Iheme

Posts: 2
Registered: 6/28/11
Re: commBCHEncoder/commBCHDecoder
Posted: Jul 4, 2011 1:50 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

"Leonardo O. Iheme" <obina.iheme@yahoo.com> wrote in message <iuckg0$7o3$1@newscl01ah.mathworks.com>...
> "Spiros" wrote in message <ieikf0$s16$1@fred.mathworks.com>...
> > Hi to all,
> > This question is considered with the use of Communications
> > Toolbox/Blockset.
> >
> > I am trying to write a m-file that uses the comm.BCHEncoder/comm.Decoder in MATLAB R2010b for the DVB-T2 (DVB-S2 are the same) standard?.
> >
> > In the DVB-S.2 model in Simulink the compiler doesn't complaint for any LDPC rate and everything seems OK.
> > In my code,if I try to use comm.BCHEncoder with any code rate other than 1/2 again everything is OK.
> > When I try Kbch=32208 and Nbch=32400,
> > I get an error:The values for N and K do not produce a valid narrow-sense BCH code.
> >
> > %-----------------BCH encoding.... --------------------------------------
> > %
> > % Constrution of BCH_Encoder and BCH_Decoder
> > N_BCH=32400;
> > K_BCH=32208;
> > BBFrame=round(rand(32208,1));
> > BCH_Encoder=comm.BCHEncoder('CodewordLength',N_BCH,'MessageLength',K_BCH,'GeneratorPolynomial',g);
> > BCH_Decoder=comm.BCHDecoder('CodewordLength',N_BCH,'MessageLength',K_BCH,'GeneratorPolynomial',g);
> >
> > BCHFrame=step(BCH_Encoder
> > Where BBframe is a random 32400 binary vector, and g the generator polynomial exactly the same as in the Simulink model DVB.S2 (can be found under "dvb stuct".
> > P.S. I also tried to use the PrimitivePolynomial with no success.
> >
> > Hope for help
> > kindly regards Spiros

>
> Hello Spiros,
>
> I am faced with the same problem could you please help me out.
> Your help will be appreciated.
> Thanks a lot


Figured it out myself and solved it. Thanks


Date Subject Author
12/18/10
Read commBCHEncoder/commBCHDecoder
Spiros
12/20/10
Read Re: commBCHEncoder/commBCHDecoder
Ethem
12/20/10
Read Re: commBCHEncoder/commBCHDecoder
Spiros
3/2/11
Read Re: commBCHEncoder/commBCHDecoder
Adam
3/4/11
Read Re: commBCHEncoder/commBCHDecoder
Spiros
4/12/11
Read Re: commBCHEncoder/commBCHDecoder
Bahman
4/15/11
Read Re: commBCHEncoder/commBCHDecoder
Spiros
6/2/11
Read Re: commBCHEncoder/commBCHDecoder
allice
5/22/11
Read Re: commBCHEncoder/commBCHDecoder
Ratty
4/12/11
Read Re: commBCHEncoder/commBCHDecoder
Bahman
6/23/12
Read Re: commBCHEncoder/commBCHDecoder
Fulus
6/23/12
Read Re: commBCHEncoder/commBCHDecoder
Fulus
6/24/12
Read Re: commBCHEncoder/commBCHDecoder
Bahman
6/25/12
Read Re: commBCHEncoder/commBCHDecoder
Fulus
7/2/12
Read Re: commBCHEncoder/commBCHDecoder
Fulus
7/3/12
Read Re: commBCHEncoder/commBCHDecoder
Bahman
7/15/12
Read Re: commBCHEncoder/commBCHDecoder
Fulus
7/16/12
Read Re: commBCHEncoder/commBCHDecoder
Bahman
7/16/12
Read Re: commBCHEncoder/commBCHDecoder
Fulus
7/17/12
Read Re: commBCHEncoder/commBCHDecoder
Bahman
8/14/12
Read Re: commBCHEncoder/commBCHDecoder
Fulus
8/14/12
Read Re: commBCHEncoder/commBCHDecoder
Bahman
8/15/12
Read Re: commBCHEncoder/commBCHDecoder
Fulus
8/16/12
Read Re: commBCHEncoder/commBCHDecoder
Bahman
8/22/12
Read Re: commBCHEncoder/commBCHDecoder
Ed MrTz
8/22/12
Read Re: commBCHEncoder/commBCHDecoder
Bahman
8/22/12
Read Re: commBCHEncoder/commBCHDecoder
Ethem Sozer
8/25/12
Read Re: commBCHEncoder/commBCHDecoder
Ed MrTz
12/29/12
Read Re: commBCHEncoder/commBCHDecoder
Ed MrTz
5/14/11
Read Re: commBCHEncoder/commBCHDecoder
Akilan
6/28/11
Read Re: commBCHEncoder/commBCHDecoder
Leonardo O. Iheme
7/4/11
Read Re: commBCHEncoder/commBCHDecoder
Leonardo O. Iheme
12/7/11
Read Re: commBCHEncoder/commBCHDecoder
Brian
12/7/11
Read Re: commBCHEncoder/commBCHDecoder
Brian
4/19/14
Read Re: commBCHEncoder/commBCHDecoder
ibrahemsami100@gmail.com

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.