How to generate White Gauss noise for Random Road Profile as per ISO 8608?

I am trying to simulate Random Road Profile Grade-C as per ISO 8608 usin Shaping Filter Method equation (Eq. 15 of attachement). The value of "Alpha" is taken as 0.127 from Table.3 shown in attached image, "Velocity of vehicle, v = 20 m/s". But as per Simulink Model "Random Number Block" is used for generating "Gaussian White Noise". The block requires 4 inputs i.e. "Mean", "Variance", "Initial SEED" and "Sample Time".

The "Mean" is taken as "0" , "Sample Time" is taken as Simulation fixed step time i.e. 0.001. Now I have no clue what value will be used for "Variance" and "SEED"? for this white noise.

Will this "variance" be Square of "Sigma" from Table 3? or some thing else?

Answer 1

[Mattia Abrate]

Hi! I'm having exactly the same problems, did you soved them?