Basics of python types:
Phase * (float(SampleRate)/360)
(your own parentheses are actually mathematically irrelevant, and
numerically make the result less stable, so I' omit them, i.e. Phase *
float(SampleRate)/360)
Best regards,
Marcus
On Tue, 2019-01-22 at 06:30 -0700, david vanhorn wrote:
>
from __future__ import division
...in the script at the top or as a GRC block will also do the trick.
On Tue, Jan 22, 2019, 17:42 Cinaed Simson On 1/22/19 4:59 AM, david vanhorn wrote:
> > Nope.
> >
> > 1/Averaging evaluates to zero.
> > 1/Averaging. (trailing period) does not evaluate, either
On 1/22/19 4:59 AM, david vanhorn wrote:
> Nope.
>
> 1/Averaging evaluates to zero.
> 1/Averaging. (trailing period) does not evaluate, either in the Moving
> Average parameters, or as a separate variable.
You can't put a "." after a variable.
Use
1/float(Averaging)
or
1./Averaging
--
So how would you represent this expression so that it evaluates as floating
point:
As the "Delay" variable in a delay block: Phase * (SampleRate/360)
On Tue, Jan 22, 2019 at 5:59 AM david vanhorn wrote:
> Nope.
>
> 1/Averaging evaluates to zero.
> 1/Averaging. (trailing period) does not
Nope.
1/Averaging evaluates to zero.
1/Averaging. (trailing period) does not evaluate, either in the Moving
Average parameters, or as a separate variable.
On Mon, Jan 21, 2019 at 11:00 PM Cinaed Simson
wrote:
> 1/5 is zero using integer division in python.
>
> Try using float division
>
>
1/5 is zero using integer division in python.
Try using float division
1/4000.
1/5.
-- Cinaed
On 1/21/19 4:41 PM, david vanhorn wrote:
> The docs say that I need to set Scale to the inverse of the Length.
> Ok, I interpret that as Length = 4000 and Scale = 1/4000
> The docs here:
>
Dear all,
In addition to my previous response, I'm attaching an image that shows the
formula I'm trying to build in gnuradio (using blocks). But instead of n =
0 and N-1, I need n = 1 and 100 (100 samples). The second picture shows how
I tried to do in Gnuradio, but the moving average block does
Hi Pedro,
$y[n]=\sum\limits_{i=n-N+1}^n {\left|x[i]\right|^2}$ is nothing but the
moving average over the squared magnitude.
Sadly, your formula
$T=\sum\limits_{n=0}^{N-1} {\left|Y[n]\right|^2}$ doesn't specify what T
signifies; is T used as a single sum over N samples' squared magnitudes,
or is
Whoops, just noticed I didn't reply to all when I answered so my message
and Pedro's response were not forwarded to the mailing list :
Le jeu. 7 janv. 2016 à 20:28, Pedro Gabriel Adami <
pedrogabriel.ad...@gmail.com> a écrit :
Dear, Timothée,
Thank you so much. I am doing some tests and I've
Chiming in that this is also a great opportunity to contribute improved
documentation after you've figured out your answer.
In addition to Marcus' comment, looking at the code helps (and in this case
is pretty easy):
set_history(d_length);
// skipping some stuff
@I_TYPE@ sum =
On Mon, Feb 09, 2009 at 01:43:41PM +0100, Martin Braun wrote:
[code]
Here's what I don't understand: the state for the MA (as for all
filters) is saved implicitly in the history. However, in this special
case, the state is simply one scalar value (saved in 'sum'). The way
this is
Whoops,
forget about skipping the history(), of course it couldn't work.
However, by adding a state buffer to the class, the first for() loop
can be skipped. For long MAs, this would save some multiplications and
only increase memory usage by one item_size.
The reason we don't do that is that
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