Spatial sigma-delta signal acquisition for wideband beamforming arrays

Ryan M. Corey, Andrew C. Singer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We consider spatial and spatio-temporal sigma-delta modulation structures for wideband signal acquisition with dense sensor arrays. Using closely arranged sensors, the array oversamples the signal in space and applies coarse quantization to each sensor output. A sigma-delta structure propagates quantization noise between sensors to shape the noise in space, just as a time-domain sigma-delta converter shapes noise in frequency. The spatially shaped noise is then filtered by a delay- and-sum beamformer. In this work, we also introduce higher-order sigma-delta structures and hybrid space-time architectures that can achieve greater noise shaping in both space and time. The coarsely quantized sigma-delta structure can be used to build high-resolution arrays with lower power and complexity.

Original languageEnglish (US)
Title of host publicationWSA 2016 - 20th International ITG Workshop on Smart Antennas
PublisherVDE Verlag GmbH
Pages524-530
Number of pages7
ISBN (Electronic)9783800741779
StatePublished - Jan 1 2019
Event20th International ITG Workshop on Smart Antennas, WSA 2016 - Munich, Germany
Duration: Mar 9 2016Mar 11 2016

Publication series

NameWSA 2016 - 20th International ITG Workshop on Smart Antennas

Conference

Conference20th International ITG Workshop on Smart Antennas, WSA 2016
CountryGermany
CityMunich
Period3/9/163/11/16

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Instrumentation

Fingerprint Dive into the research topics of 'Spatial sigma-delta signal acquisition for wideband beamforming arrays'. Together they form a unique fingerprint.

  • Cite this

    Corey, R. M., & Singer, A. C. (2019). Spatial sigma-delta signal acquisition for wideband beamforming arrays. In WSA 2016 - 20th International ITG Workshop on Smart Antennas (pp. 524-530). (WSA 2016 - 20th International ITG Workshop on Smart Antennas). VDE Verlag GmbH.