I am new to the subject and trying to learn and equip well into the topic. I got a problem to solve and it only contains the model equation - {Generic AR(N) model} modelled using the equation: v[k] + d1v[k-1]+.......dNv[k-N] = e[k], where e[k] is the white noise sequence. How to estimate the coefficients for N = 3?

Any pointers on this topic will help or steps to validate the solution.

If I have some model parameters , d1,d2,d3, how to verify them for the model of N= 3