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We describe generalized projection procedures for the design of arbitrary filter functions for correlators. More specifically, serial and parallel implementations of projection-based algorithms are employed. The novelty of this procedure lies in its generality and its ability to handle wide varieties of constraints by the same procedure. The procedure is(More)
We call a sequence fx n g in Hilbert space \spherical" if there exists u such that lim kx n ? uk exists and is nite. If moreover u is a weak accumulation point of the sequence, we call the sequence \spherically convergent". We demonstrate that for large classes of non-expansive (possibly non-stationary) discrete-time processes in Hilbert space the iterates(More)
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