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

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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