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[Discuss-gnuradio] About stream/vector and trellis_encoder
From: |
Axel Belliard |
Subject: |
[Discuss-gnuradio] About stream/vector and trellis_encoder |
Date: |
Fri, 19 Mar 2010 11:49:08 +0100 (CET) |
User-agent: |
SquirrelMail/1.5.1 |
Hi
I'm facing 2 problemes :
- I'm trying to design a flow graph that creat a transmission frame from a
input file.
The frame must be like this :
[ (sync bytes x80)(data bytes x32)(0x16)(data bytes x32)(0x16)(data bytes
x32)(0x16)(data bytes x32) ]
My idea is to use vector/stream converters, to divide my input file into
32 bytes long packet, then concatenate the appropriate bytes to my
packets.
I did not find any function to concatenate vectors. Is there one?
I'm not really sure, that I understood the differences between vectors and
stream. Could some one explain them to me?
- My second problem is about trellis_encoder :
>From what I know about convolutional encoder, this bloc should take as
parameters : 2 polynoms, and an initialisation sentence. It seems that the
first argument of trellis_encoder, must describe the two polynoms. How
should it be formatted?
Thanks for reading me
Axel
- [Discuss-gnuradio] About stream/vector and trellis_encoder,
Axel Belliard <=