aspsim.signal.sources.ar_coeffs_to_transfer_function

aspsim.signal.sources.ar_coeffs_to_transfer_function(ar_coeffs)
Gives the rational transfer function that will give rise to

the provided AR process, if a white noise is filtered through the returned filter.

According to scipy.signal.lfilter which implements the system
a_0 y(n) = b_0 x(n) + b_1 x(n-1) + … + b_t x(n-t)

-a_1 y(n-1) - a_2 y(n-2) - … - a_p y(n-p)