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 not get 100 samples the way I need (as we could see in the previous answers).
Timothée told me to use stream to vector, but if I pack them, each 100 samples will become one single information, right? What I need is more like a controller that gives me 100 samples at a time. Please, I appreciate if you could give me some tips. Thanks in advance. 2016-01-08 14:47 GMT-02:00 Timothée COCAULT <timothee.coca...@gmail.com>: > 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 realized that the > results are a little strange. That is why I asked. > > Let me ask you one more thing: Do you know some block that is capable to > retain N samples, so I can use them and after that, it retains the next N > samples? Like a variable where I can "save" the information for a short > period of time, but my Gnuradio does not have a "variable sink". > > Thanks in advance. > Em 07/01/2016 17:18, "Timothée COCAULT" <timothee.coca...@gmail.com> > escreveu: > >> Hi Pedro, >> >> When you're not sure, the best solution is often to look at the code. >> If you look at the work function in >> gr-blocks/lib/moving_average_XX_impl.cc.t, you see that the block first >> sums the history (of length 100 in your case). >> For each additional input items, it adds the new item and subtracts the >> n-100 item, and outputs the current sum. >> >> So it will first calculate 1+...+100, then 2+...+101 and so on. >> >> Regards, >> Timothée. >> > >> > > > I don't understand exactly your question but you can use a stream to > vector to group your items in packets of size N, and plug it into a probe > signal > -- Atenciosamente, Pedro Gabriel Adami Graduando do 5º período de Engenharia de Controle e Automação no Instituto Nacional de Telecomunicações - Inatel
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