Summing members of a vector

GNU Radio
1

I am trying to find a block in the gnuradio-companion 3.7.3 that will
allow me to sum the members of a vector. The example wouldbe that I have
a complex to mag block with a vector length of 64 output that is being
connected to a vector to streams block with 64 stream outputs. I then am
using a add block with 64 inputs to connect all the individual streams
to.

What I am looking for is a way to sum all the members of each vector so
I just have one stream with the summed members of the vectors connecting
to my next down stream block and avoiding a vector to streams with 64
output streams and a add block with 64 inputs. The reason this is an
issue is because I need to get to a vector length of 1024 and cant see
doing this with a vector to streams block with 1024 outputs in the
visual gnuradio-companion environment. Any answers, thoughts or ideas
would be greatly appreciated.

Chris Simpson

2

Maybe you can convert the vector to stream, then integrate with
decimation by
64.

Thanks,
Lou
KD4HSO

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3

Good approach!
Also, if this is more about using and learning GNU Radio than about bare
performance, you could try to write your own python block; since the in-
and output type wrappers for these are numpy arrays, a simple out[:] =
in.sum() (or the like, depending on how you set up your names and types)
would do the job :slight_smile:

Greetings,
Marcus