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Updating the power spectrum of real data by the Hartley method

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2 Author(s)
A. Bernardi ; Stanford University, Stanford, CA ; R. N. Bracewell

A general technique for updating a previously calculated power spectrum upon the reception of a new real data sample is presented. The technique is based on the Hartley transform which provides a fast and simple technique for the updating. Only N real multiplications and 2N + 1 real additions are needed for each update.

Published in:

Proceedings of the IEEE  (Volume:75 ,  Issue: 7 )