International Business Machines Corporation

Nezihe Merve Guerel

Paul T Hurley

Matthieu Martin Jean-Andre Simeoni

Matthieu M J Simeoni

In a computerized method to reduce noise in phased-array signals from a set of receivers at different locations, time-series are received from the receivers, which time-series form phased-array signals. The time-series are ordered based on the different locations of the receivers and spatially phased series are obtained from the ordered time-series. Each of the spatially phased series obtained includes a series of signal values that are spatially phased. A noise component is identified in each of the spatially phased series obtained and removed from the spatially phased series to obtain denoised series. Related receiver systems and computer program products are also provided.

Reducing noise in phased-array signals from receivers located at different locations

In a method for determining positions {p}of transducers {A}of an apparatus, the transducers are assumed to be configured for receiving wave signals from and/or transmitting wave signals to one or more regions {R}of interest in an n-dimensional space, with n=2 or 3. An n-dimensional spatial filter function {circumflex over (&#x3c9;)}(r) is determined, which matches projections {P}of the one or more regions {R}of interest onto an n&#x2212;1-dimensional sphere centered on the apparatus. Then, a density function &#x192;(p) is obtained, based on a Fourier transform &#x3c9;(p) of the determined spatial filter function {circumflex over (&#x3c9;)}(r). Finally, a position pis determined, within said n-dimensional space, for each of N transducers, based on the obtained density function &#x192;(p) and a prescribed number N of the transducers. The invention is further directed to related devices, apparatuses and systems, as well as computer program products.

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Rueschlikon, Switzerland

Nezihe Merve Guerel