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.
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|www.azistaaerospace.com
From: "Cinaed Simson" <cinaed.simson@gmail.com>
To: "Maitry Raval" <maitry.raval@azistaaerospace.com>
Cc: "discuss-gnuradio" <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:
Hello,
I understand that I have use online ASCII to binary
converter and for that I am using below online converter.
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.
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:
Hello experts,
Any updates?
Ok, thanks.
Hello,
Please ignore the previous grc file. please
find attached the correct grc file.
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) ?
Or maybe use a gr-baz any
sink to view bits?
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|www.azistaaerospace.com
>
> ----- Original Message -----
> From: "Marcus Müller" <mmueller@gnuradio.org>
> To: "discuss-gnuradio" <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
>>
>> 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|www.azistaaerospace.com
>>
>> ----- Original Message -----
>> From: "Marcus Müller, CEL"
<mueller@kit.edu>
>> To: "discuss-gnuradio" <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
>>>
>>> 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|www.azistaaerospace.com
> >
--
S. Aditya Arun Kumar
Security Researcher, Comms
+919123517465
--
S. Aditya Arun Kumar
Security Researcher, Comms
+919123517465