This post is a rehash of my earlier post in Section 1.1 where the complex-valued Durbin’s algorithm was used indirectly for matrix inversion. Here, the algorithm is written down separately as it may be useful for some to have it “out of the box.”
The complex-valued versions of Durbin’s and Levinson’s algorithms may be arrived upon by straightforward application of description in [7] sec. 4.7.2 “Solving the Yule-Walker Equations”, and 4.7.3 “The General Right Hand Side Problem.”
Let and be a positive definite Hermitian symmetric Toeplitz matrix constructed with the scalars (see example below), Durbin’s algorithm solves the system The algorithm is as follows.
First published: 30th Jan. 2016 on aravindhk-math.blogspot.com
Modified: 17th Dec. 2023 – Style updates for LaTeX