vlt.math/identity_tests.autocorr_step_zeros

  AUTOCORR_STEP_ZEROS - Evaluate z-transform of autocorrelation using zeros

   [V, ZI] = vlt.math.identity_tests.autocorr_step_zeros(z,N,alpha)

   Evalutes the z-transform of the autocorrelation using the functions zeros
   (This is for test purposes only)