Hi Rud,
I just sent you the Pascal source code for generating and receiving OFDM via
wav files. There is also a simple program that will modify a file to simulate
multipath by converting it into multiple rays.
I agree with Vojtech that it's not very useful to flip bits for testing as any
I understand about the use of soft decoders.
If the protocol uses a soft decoder and another hard decoder the latter
works at the bit level. A standard example is using Reed-Solomon for the
hard decoder. Would the bit flipping be representative of the atmospheric
effects for the outer hard
, they still use an
RS code that is capable of correcting bursts of 8 errors.
73,
John
KD6OZH
- Original Message -
From: Rud Merriam
To: digitalradio@yahoogroups.com
Sent: Tuesday, November 06, 2007 20:10 UTC
Subject: RE: [digitalradio] Testing Digital Codes at Bit Level
, TX
http://TheHamNetwork.net http://thehamnetwork.net/
-Original Message-
From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of John B. Stephensen
Sent: Tuesday, November 06, 2007 2:30 PM
To: digitalradio@yahoogroups.com
Subject: Re: [digitalradio] Testing Digital
Subject: Re: [digitalradio] Testing Digital Codes at Bit Level
If you have an inner and outer code that would be the situation, but I'm
not sure that flipping one bit would always be accurate. A Viterbi decoder
might generate small bursts of errors. HDTV uses TCM with an outer Reed
