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Fast time-invariant implementations of Gaussian signal detectors

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4 Author(s)

A new implementation is presented for the optimum likelihood ratio detector for stationary Gaussian signals in white Gaussian noise that uses only two causal time-invariant filters. This solution also has the advantage that fast algorithms based on the Levinson and Chandrasekhar equations can he used for the determination of these time-invariant filters. By using a notion of "closeness to stationarity,' there is a natural extension of the above results for nonstationary signal processes.

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Information Theory, IEEE Transactions on  (Volume:24 ,  Issue: 4 )