home bbs files messages ]

Forums before death by AOL, social media and spammers... "We can't have nice things"

   comp.protocols.tcp-ip      TCP and IP network protocols.      14,669 messages   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]

   Message 13,337 of 14,669   
   Steve Pope to Eric Jacobsen   
   Re: OT: The Truth About Predator Drones   
   20 Dec 09 17:32:49   
   
   632ab999   
   XPost: comp.dsp, sci.crypt, sci.electronics.design   
   From: spope33@speedymail.org   
      
   On Dec 20, 2:36 am, Eric Jacobsen  wrote:   
      
   > The point was really that even from an advanced FEC standpoint an input   
   > BER of 1 in 10 isn't practical to work with for the described   
   > application.   Yielding half the bandwidth to FEC overhead is actually   
   > practical, and using R = 1/2 coding over satellite channels is quite   
   > common.   Using something like an R = 1/6 capacity-approaching code to   
   > be able to handle such low input error rates is, I think, not practical.   
      
   Last I checked, such a channel is within the operating range of a rate   
   1/3 binary convolutional code...   
      
   Steve   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]


(c) 1994,  bbs@darkrealms.ca