Dear sir,
Thank you for your response.
As I have a final application to use only demodulation and data storage using
GNU radio as my transmitter is external. after that also I am facing an issue
for stored data which is random not as transmitted. so request you to please
guide me further in this demodulation.
Thank you in advance
With Best Regards,
Maitry Raval,
R& D engineer|Azista Industries Pvt Ltd| 079-40605800|www.azistaaerospace.com
From: "Christophe Seguinot" <christophe.segui...@orange.fr>
To: "Maitry Raval" <maitry.ra...@azistaaerospace.com>
Cc: "discuss-gnuradio" <discuss-gnuradio@gnu.org>
Sent: Wednesday, November 11, 2020 1:53:34 PM
Subject: Re: Issue in file sink block
Hi
I've been investigating but did not yet found the origin of this problem. I'm
working under GR 3.9/Ubuntu 20.04
* the bit sequence is correctly demodulated, whatever the source (txt or
random) is. There is a 58 sample delay between bit source and demodulated bit.
(so modulation/demodulation is OK)
* however, the received bytes don't match the emitted bytes.
* I'm further investigating if "pack bits" and "unpack bits" block are used
correctly (I'm not familiar to them)
Regards
On 11/11/2020 04:25, Maitry Raval wrote:
Hello,
I think there is some misunderstanding here, I am using the attached grc file
which includes all the ok blocks such as polyphase clock sync, costas loop, CMA
equilizer etc for demodulation. Please check the attached file. for the
attached grc, I am facing the below issue.
I understand that I have use online ASCII to binary converter and for that I am
using below online converter.
[ https://www.rapidtables.com/convert/number/ascii-to-binary.html |
https://www.rapidtables.com/convert/number/ascii-to-binary.html ]
But I am facing an issue, while I am transmitting repetitive pattern such as
1100, 1010 , the data stored in the file after mod-demod is almost similar(
only some initial bits are changed) . Please check the screenshot attached.
But when I am transmitting some random pattern instead of repetitive using file
source, I am not receiving the same pattern, while I am converting the stored
ASCII to binary using converter.
Please help.
With Best Regards,
Maitry Raval,
R& D engineer|Azista Industries Pvt Ltd| 079-40605800| [
http://www.azistaaerospace.com/ | www.azistaaerospace.com ]
From: "Cinaed Simson" [ mailto:cinaed.sim...@gmail.com |
<cinaed.sim...@gmail.com> ]
To: "Maitry Raval" [ mailto:maitry.ra...@azistaaerospace.com |
<maitry.ra...@azistaaerospace.com> ]
Cc: "discuss-gnuradio" [ mailto:discuss-gnuradio@gnu.org |
<discuss-gnuradio@gnu.org> ]
Sent: Wednesday, November 11, 2020 12:51:54 AM
Subject: Re: Issue in file sink block
Hi Maitry - okay, then Marcus has already updated you - DPSK Mod is
depreciated.
That is, it has bugs which can't or won't be fixed and is no longer supported.
-- Cinaed
On 11/9/20 7:43 PM, Maitry Raval wrote:
BQ_BEGIN
Hello,
I understand that I have use online ASCII to binary converter and for that I am
using below online converter.
[ https://www.rapidtables.com/convert/number/ascii-to-binary.html |
https://www.rapidtables.com/convert/number/ascii-to-binary.html ]
But I am facing an issue, while I am transmitting repetitive pattern such as
1100, 1010 , the data stored in the file after mod-demod is almost similar(
only some initial bits are changed) . Please check the screenshot attached.
But when I am transmitting some random pattern instead of repetitive using file
source, I am not receiving the same pattern, while I am converting the stored
ASCII to binary using converter.
I have sent the GRC file in previous mail. Kindly let me know, where is the
problem?
Waiting for your positive response.
With Best Regards,
Maitry Raval,
R& D engineer|Azista Industries Pvt Ltd| 079-40605800| [
http://www.azistaaerospace.com/ | www.azistaaerospace.com ]
From: "Cinaed Simson" [ mailto:cinaed.sim...@gmail.com |
<cinaed.sim...@gmail.com> ]
To: "discuss-gnuradio" [ mailto:discuss-gnuradio@gnu.org |
<discuss-gnuradio@gnu.org> ]
Sent: Monday, November 9, 2020 1:15:51 PM
Subject: Re: Issue in file sink block
Hi Maitry - if by update you mean dumping a binary file as binary instead of
hexadecimal, then on Linux use
xxd -b <infile> <outfile>
-- Cinaed
On 11/8/20 8:13 PM, Maitry Raval wrote:
BQ_BEGIN
Hello experts,
Any updates?
With Best Regards,
Maitry Raval,
R& D engineer|Azista Industries Pvt Ltd| 079-40605800| [
http://www.azistaaerospace.com/ | www.azistaaerospace.com ]
From: "Aditya Arun Kumar" [ mailto:adityaarunkumar...@gmail.com |
<adityaarunkumar...@gmail.com> ]
To: "Maitry Raval" [ mailto:maitry.ra...@azistaaerospace.com |
<maitry.ra...@azistaaerospace.com> ]
Cc: "discuss-gnuradio" [ mailto:discuss-gnuradio@gnu.org |
<discuss-gnuradio@gnu.org> ]
Sent: Wednesday, November 4, 2020 11:46:32 AM
Subject: Re: Issue in file sink block
Ok, thanks.
On Wed, Nov 4, 2020 at 11:28 AM Maitry Raval < [
mailto:maitry.ra...@azistaaerospace.com | maitry.ra...@azistaaerospace.com ] >
wrote:
BQ_BEGIN
Hello,
Please ignore the previous grc file. please find attached the correct grc file.
With Best Regards,
Maitry Raval,
R& D engineer|Azista Industries Pvt Ltd| 079-40605800| [
http://www.azistaaerospace.com/ | www.azistaaerospace.com ]
From: "Maitry Raval" < [ mailto:maitry.ra...@azistaaerospace.com |
maitry.ra...@azistaaerospace.com ] >
To: "Aditya Arun Kumar" < [ mailto:adityaarunkumar...@gmail.com |
adityaarunkumar...@gmail.com ] >
Cc: "discuss-gnuradio" < [ mailto:discuss-gnuradio@gnu.org |
discuss-gnuradio@gnu.org ] >
Sent: Wednesday, November 4, 2020 9:06:09 AM
Subject: Re: Issue in file sink block
Hello,
Please find attached grc file for reference. I have done trial and error by
converting the output file into online ascii to binary converter, but it
provides random output.
Please guide which binary viewer I need to use in check the data in 1 and 0
format(binary) ?
With Best Regards,
Maitry Raval,
R& D engineer|Azista Industries Pvt Ltd| 079-40605800| [
http://www.azistaaerospace.com/ | www.azistaaerospace.com ]
From: "Aditya Arun Kumar" < [ mailto:adityaarunkumar...@gmail.com |
adityaarunkumar...@gmail.com ] >
To: "Derek Kozel" < [ mailto:de...@bitstovolts.com | de...@bitstovolts.com ] >
Cc: "Maitry Raval" < [ mailto:maitry.ra...@azistaaerospace.com |
maitry.ra...@azistaaerospace.com ] >, "Marcus Müller" < [
mailto:mmuel...@gnuradio.org | mmuel...@gnuradio.org ] >, "discuss-gnuradio" <
[ mailto:discuss-gnuradio@gnu.org | discuss-gnuradio@gnu.org ] >
Sent: Tuesday, November 3, 2020 5:49:05 PM
Subject: Re: Issue in file sink block
Or maybe use a gr-baz any sink to view bits?
On Tue, Nov 3, 2020 at 5:43 PM Derek Kozel < [ mailto:de...@bitstovolts.com |
de...@bitstovolts.com ] > wrote:
BQ_BEGIN
Hello Maitry,
The File Sink is not producing a text file, it is the raw binary data.
You need to look at the contents of the file using a binary viewer.
Regards,
Derek
On 03/11/2020 11:12, Maitry Raval wrote:
> Hello sir,
>
> Please find attached screenshot for the grc file same as given in PSK guided
> tutorials. also, I have attached output txt file for your reference. still ,
> did not receive binary data stored via file sink.
>
> Please guide, where am I doing wrong.
>
>
> With Best Regards,
> Maitry Raval,
> R& D engineer|Azista Industries Pvt Ltd| 079-40605800| [
> http://www.azistaaerospace.com/ | www.azistaaerospace.com ]
>
> ----- Original Message -----
> From: "Marcus Müller" < [ mailto:mmuel...@gnuradio.org |
> mmuel...@gnuradio.org ] >
> To: "discuss-gnuradio" < [ mailto:discuss-gnuradio@gnu.org |
> discuss-gnuradio@gnu.org ] >
> Sent: Monday, November 2, 2020 8:47:28 PM
> Subject: Re: Issue in file sink block
>
> Again, the file sink is fine.
>
> On 02.11.20 04:39, Maitry Raval wrote:
>> Hello,
>>
>> I understand, I think, I need to use PSK demod using below link.
>> [ https://wiki.gnuradio.org/index.php/Guided_Tutorial_PSK_Demodulation |
>> https://wiki.gnuradio.org/index.php/Guided_Tutorial_PSK_Demodulation ]
>>
>> But, as I have a requirement of storing the demod data in file , how is it
>> possible using file sink or any other way, please guide.
>>
>> With Best Regards,
>> Maitry Raval,
>> R& D engineer|Azista Industries Pvt Ltd| 079-40605800| [
>> http://www.azistaaerospace.com/ | www.azistaaerospace.com ]
>>
>> ----- Original Message -----
>> From: "Marcus Müller, CEL" < [ mailto:muel...@kit.edu | muel...@kit.edu ] >
>> To: "discuss-gnuradio" < [ mailto:discuss-gnuradio@gnu.org |
>> discuss-gnuradio@gnu.org ] >
>> Sent: Saturday, October 31, 2020 9:06:22 PM
>> Subject: Re: Issue in file sink block
>>
>> Hi Maitry,
>>
>> I doubt it's the file sink. That tutorial used DPSK Mod, and that's
>> among the buggy packet_encoder tooling that we deprecated a long time
>> ago, and finally banished two-ish years ago. It just dropped data.
>>
>> See the more modern packet examples that come with your GNU Radio 3.8.
>>
>> Cheers,
>> Marcus
>>
>> On 31.10.20 09:34, Maitry Raval wrote:
>>> Hello ,
>>>
>>> I am using GNU radio along with ADRV9361-Z7035 Board for data reception
>>> and demodulation. I have faced an issue of using file sink block along
>>> with QPSK demod blocks. when I am attaching dpsk/PSK demod block with
>>> file sink, I have not received data in binary format. it gives some
>>> trunk values. when I am doing wrong, please guide us.
>>> I have taken a reference of below link.
>>> [ https://courses.washington.edu/ee420/projects/lab2_gnuradio.pdf |
>>> https://courses.washington.edu/ee420/projects/lab2_gnuradio.pdf ]
>>>
>>> The only difference is that I am using receiving section only. as I am
>>> transmitting from other source. so I have attached fmcommsource block
>>> with dpsk demod followed by file sink.
>>>
>>> Please guide
>>>
>>> With Best Regards,
>>> Maitry Raval,
>>> R& D engineer|Azista Industries Pvt Ltd|
>>> 079-40605800| [ http://www.azistaaerospace.com/ | www.azistaaerospace.com ]
> >
--
S. Aditya Arun Kumar
Security Researcher, Comms
+919123517465
BQ_END
--
S. Aditya Arun Kumar
Security Researcher, Comms
+919123517465
BQ_END
BQ_END
BQ_END
