bugGNU Octave - Bugs: bug #47233, [octave forge] (communications)...

 
 

bug #47233: [octave forge] (communications) convenc with initial state but no puncturing

Submitted by:  None
Submitted on:  Tue 23 Feb 2016 08:47:18 AM UTC  
 
Category: Octave Forge PackageSeverity: 2 - Minor
Priority: 5 - NormalItem Group: Incorrect Result
Status: Need InfoAssigned to: Mike Miller <mtmiller>
Originator Name: Emmanuel ChevalierOriginator Email: -unavailable-
Open/Closed: OpenRelease: other
Operating System: Any

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Tue 23 Feb 2016 07:17:24 PM UTC, comment #1:

Hi, thanks for your bug report.

Can you try the following usage in your script instead, it does work for me:

Notice the empty array placeholder for the 3rd argument. And you should have seen the warning about puncturing not yet implemented, this pointed out to me that something was wrong with your example.

Are you saying the usage you show works in Matlab, where the initial state is given as the 3rd input argument? If so, that is a simple bug in the argument handling.

Mike Miller <mtmiller>
Project AdministratorIn charge of this item.
Tue 23 Feb 2016 08:47:18 AM UTC, original submission:

communications package v1.2.1

run the script verif.
The last four results should be all equal to zero.
Instead 2 of them are equal to 1.

The test consists in convolutional encoding of the same bit sequence concatenated 3 times.

Although the encoder returns to it initial state after the single sequence encoding (i.e. 10), when encoding the concatenated sequence, the result is different from the concatenation of the single encoded sequence...

Anonymous

 

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Attached Files
file #36435:  data.dat added by None (7KiB - application/octet-stream - my first octave bug report, be indulgent)
file #36436:  verif.m added by None (524B - application/octet-stream - my first octave bug report, be indulgent)

 

Depends on the following items: None found

Items that depend on this one: None found

 

Carbon-Copy List
  • -unavailable- added by jwe (Updated the item)
  • -unavailable- added by mtmiller (Posted a comment)
  • -unavailable- added by None (Submitted the item)
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    Follow 12 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Sun 13 Aug 2017 12:58:41 PM UTCjweSummarycommunications package: convenc with initial state but no puncturing=>[octave forge] (communications) convenc with initial state but no puncturing
    Tue 23 Feb 2016 07:17:24 PM UTCmtmillerSeverity3 - Normal=>2 - Minor
      StatusNone=>Need Info
      Assigned toNone=>mtmiller
      Release4.0.0=>other
      Operating SystemMicrosoft Windows=>Any
      Summaryconvenc bug in communications package=>communications package: convenc with initial state but no puncturing
    Tue 23 Feb 2016 04:38:42 PM UTCrik5Carbon-CopyRemoved 72865=>-
    Tue 23 Feb 2016 04:37:37 PM UTCrik5CategoryOctave Function=>Octave Forge Package
      Summarybug convenc=>convenc bug in communications package
    Tue 23 Feb 2016 08:47:18 AM UTCNoneAttached File-=>Added data.dat, #36435
      Attached File-=>Added verif.m, #36436

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