
264 J. Dehaene et al.
When supplied with piecewise constant inputs, these algorithms give the same solutions
as discrete algorithms for RLS. The first term of algorithm (5) is of type III and the first term
of algorithm (6) is of type II. The second term of both algorithms has a trivial realization.
Algorithm (5) is a continuous time limit of the well known Gentleman Kung array for QR-
updating [5]. Algorithm (6) is a continuous time limit of the
systolic
algorithm described
in [6].
The resemblance of (6) and (2), suggests that a similar systolic array exists for a discrete
version of (2). ...