Re: [Discuss-gnuradio] Regarding correlate access code-tag block

[Maitry Raval]

Hello, 
thanks for your guidance.
I have also attached the grc file, input/output files and python file for your 
reference. after adding tag debug, still didn't get any output. I have also 
tried this same in ubuntu 18.04 with GNU radio 3.7.11 version.
actually because these psk blocks are deprecated, I have tried it with dpsk 
mod, demod block. But as I wanted to do continuous transmission, I didn't find 
replaced block for correlate access code-tag block, and the cusom block from 
gr-satellites are for extracting syncbits. 
I have also tried with simple flow graph by just sream muxing 2 files one with 
sync bits and other one is payload file and give that output to correlate 
access code-tag block, but that also didn't work.

It would be grateful, If you guide me on this. I just want to make that sync 
bits searching and extracting from payload and receive only payload at the 
output. 


With Best Regards,
Maitry Raval,


----- Original Message -----
From: "Cinaed Simson" <address@hidden>
To: "discuss-gnuradio" <address@hidden>
Sent: Tuesday, January 8, 2019 1:47:56 PM
Subject: Re: [Discuss-gnuradio] Regarding correlate access code-tag block

I broke down and looked at the image.

Note, PSK Demod, Correlate Access Code - Tag, Packet Encoder, and Packet
Decoder have been depreciated.

And they're usually depreciated because they have problems - and they
are usually replaced with different blocks which work better and are
typically more general.

The tutorials are good place to start looking for the replacements.

-- Cinaed


On 1/7/19 11:22 PM, Thomas Lavarenne wrote:
> Oh, it is "File Sink" not "Tagged file sink", didn't see sorry.
> 
> Le mar. 8 janv. 2019 à 08:20, Thomas Lavarenne
> <address@hidden <mailto:address@hidden>> a écrit :
> 
> 
> 
>     Hi,
> 
>         But, the issue is that correlate access code-tag block is not
>         working and producing tags, so that my output file will come
>         blank. as  I am certain that at the output of FEC extended
>         decoder, both the sync bits and payload is available which I
>         have seen by attaching file sink at the output of FEC extended
>         decoder.
> 
> 
>     There is a block "Tag Debug" to see if the tag is generated behind
>     "correlate access code - tag block".
> 
>     On the other hand, the documentation of "Tagged File sink" indicate
>     that the block need the keyword "burst" (with value: True) to
>     trigger the saving of the data.
> 
>     Best regards,
> 
>     Thomas
> 
>     _______________________________________________
> 
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> 
> 
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ASM bit pattern.txt
Description: Text document

1010 pattern.txt
Description: Text document

ccsds_TM.py
Description: Text Data

file transfer with FEC,ASM attach, mod-demod.grc
Description: application/xml