flip negative value as shown bellow

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abdullah qasim
abdullah qasim le 19 Sep 2019
Réponse apportée : Gokul le 19 Sep 2019
if
x=[1 2 -5 7 -9 4 -6 7 -6 8 -5 2 -1 5 -6 -8 -9 7 4 -1 ]
x + = if x(k) ≥ 0
0 otherwise
x-= if x(k) < 0
0 otherwise
. The positive signal x +(k) is transmitted in the first subframe .
the second subframe is used to carry the flipped (inverted polarity) signal −x −(k)
then send full signal
  4 commentaires
madhan ravi
madhan ravi le 19 Sep 2019
Post the attempted code.
darova
darova le 19 Sep 2019
please

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Réponse acceptée

Gokul
Gokul le 19 Sep 2019
You question is not very clear to me, but for the first part of it, I belive you want to this:
x=[1 2 -5 7 -9 4 -6 7 -6 8 -5 2 -1 5 -6 -8 -9 7 4 -1];
y=x+(x>=0)*2-1

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