Produces a pseudo-random binary sequency suitable as identification input.
y = prbn(N,rate)
This function produces a binary sequence, with values 0 and 1. The chance of switching from level is given by the parameter rate. rate = 0 yields a constant value 0. rate = 1 gives an signal that changes between 0 and 1 at every time-instant. Any value in between results in a random binary sequence. This kind of testsignal has been described in .
N are the number of samples.
rate is the (optional) probability of the signal changing level at each time-instant. The default value is 0.5.
y is a pseudo-random binary noise.
This is a top-level function that is used directly by the user.
 H. J. A. F. Tulleken, "Generalized binary noise test-signal concept for improved identification-experiment design", Automatica, vol. 26, no. 1, pp. 37-49, 1990.