Re: [Discuss-gnuradio] Display Problem with QT GUI Vector Sink

The example is running without errors.
Is it possible, that the way my music_cf function is outputting the
data, might cause some trouble?

Simon

Am 2015-09-04 21:45, schrieb Martin Braun:
> There's an example for the vector sink, which doesn't seem to have that
> issue. Can you confirm that? It's in gr-qtgui/examples.
>
> M
>
> PS: I had to locally fix the example, maybe you need to do that to, the
> actual vector sink block was missing.
>
> On 04.09.2015 01:57, gnuradio@simonbiehl.de wrote:
>> Hi Martin,
>>
>> averaging is disabled. Any further ideas?
>>
>> Best regards,
>> Simon
>>
>> Am 2015-09-03 18:49, schrieb Martin Braun:
>>> The vector sink has an averaging option, is that on?
>>>
>>> M
>>> On 03.09.2015 02:25, gnuradio@simonbiehl.de wrote:
>>>> Dear all,
>>>>
>>>> I built an angle-of-arrival system using four Ettus USRP2. I'm
>>>> facing a
>>>> problem when trying to display a vector containing the calculated
>>>> MUSIC-Spectrum using a "QT GUI Vector Sink". The vector sink won't
>>>> display any data for the first two minutes, and then it is starting
>>>> to
>>>> show very old values. When I use the block "Vector to Stream" and a
>>>> simple "QT GUI Time Sink" instead, the values are displayed
>>>> immediately
>>>> without delay.
>>>>
>>>> The block "music_cf" feeding the vector sink is a sync_decimator,
>>>> generating one vector of 181 elements for every 1000 input samples.
>>>> I've
>>>> provided a shortened version of my c++ code in the attachment,
>>>> without
>>>> the actual mathematics.
>>>>
>>>> What could be the reason for this huge delay when using the "QT GUI
>>>> Vector Sink"? Is it a buffering problem?
>>>>
>>>> Best regards,
>>>> Simon
>>>>
>>>> Block Diagram:
>>>> http://fs1.directupload.net/images/150903/7cnqbzup.png
>>>>
>>>>
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>>>
>>>
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