Hi Marcus,
Thanks for the explanation, it is very clear.
But is there a way to keep track of time elapsed across *consecutive* work
calls?
Like I said in the first post in this thread, if I have a sliding window
based energy detect. Samples keep coming in, but at some point I will have
to say, r
Hi Marcus,
Thank you for your patient replies. Last question.
>>Your block is asked "I'd like to ask you to produce 512 items. How much
input do you need?".
>>If your block then says "I need 400 items",
This means that for the block to output 512 items it needs 400 items in the
input.
>>no matt
Hi
I was just wondering if it is possible to implement a state machine logic
using GNURadio. Where each state is a block and incoming data passes
through these states. I want to be able to control which block gets
executed when, based on some state transition logic which I will define.
For exampl
Hi
Please forgive me if the questions are silly/basic. I've learnt a lot from
replies on this forum and I'm making steps in the right direction, if only
baby ones.
I am trying to implement a state machine based synchronization algorithm.
The 2 states being "search for synch sequence" and "pass da
Hi,
A quick question on tags.
I'm coding a custom block in python and my forecast function is like so:
def forecast(self, noutput_items, ninput_items_required):
#setup size of input_items[i] for work call
for i in range(len(ninput_items_required)):
ninput_items_requir
Will something like this in the work function be correct?
self.consume(0, len(input_items[0])
if (something):
return
else:
out[:] = in0 ** 2 #example
return len(output_items[0])
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Hi
Say I want to create an energy detect block that takes a certain number
of input samples, measures the (signal) power and compares it against a
threshold. Only if the power exceeds the threshold, the block has to
make the decision that some genuine signal is being received and then
move only th
Hi Marcus,
Thanks for your reply.
> So, you're writing that application and ask us how your buffering works?
> that doesn't sound right, so maybe I'm misunderstanding you?
My bad. What I meant to say was the block that I NEED to implement
involves a fixed number of samples that I need to collect
Hi
I'm writing a custom block in python. The application goes like this:
I specify the minimum number of samples I need by using the forecast
function. This ensures that I have that many samples available in the
in-buffer of the block every time work is called. Once I have as many
samples as I ne
>>Or is there a way to make sure that the in-buffer gets updated multiple
times within the same work call?
Will placing the work function inside a while 1 do the trick? But I guess
the issue with that is, as long as data is available, the scheduler calls
work function again and again anyway.
I'm
Hi all
I am experimenting with my own python block. I started by simply
interrogating each variable to see their types and shapes.
I connected a vector source that just generates increasing numbers (0, 1,
2, 3, 4, 5 and so on upto a big number).
I noticed that the length of (input_items[0]) s
ogged down by too many cases /
> specifics. I'd encourage you to see what you can find in that regard; GRCon
> and people's blogs are always good places to learn about how GR works.
>
> On Wed, Nov 15, 2017, at 09:56 PM, Anil Kumar Yerrapragada wrote:
>
> Hi all
>
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