trying to make a random number sequence similar to an MLS sequence

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I'm trying to create a random number sequence like this one: -
x = 2*rand(N,1)-1; % generate input noise signal
except instead of the numbers being at all different values between -1 and 1, I'd like them to be either -1 or 1 only.
Does anyone know how I might do this?
  2 comentarios
Daniel Shub
Daniel Shub el 4 de Abr. de 2012
This is nothing like an MLS sequence. What you are looking for is often called Bernoulli noise.
Matt Fig
Matt Fig el 2 de Nov. de 2012
Tom's question
I'm trying to create a random number sequence like this one: -
x = 2*rand(N,1)-1; % generate input noise signal
except instead of the numbers being at all different values between -1 and 1, I'd like them to be either -1 or 1 only.
Does anyone know how I might do this?

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Respuesta aceptada

Honglei Chen
Honglei Chen el 3 de Abr. de 2012
a = 2*(randi(2,N,1)-1.5)
or
a = 2*(rand(N,1)>0.5)-1

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