Minimum-norm solution for robust circular differential arrays

Jacob Benesty, Jingdong Chen, Israel Cohen

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

In this chapter, we show how the classical adaptive beamforming technique is related to differential circular arrays. From this important and useful relationship, we then derive a minimum-norm filter for the design of any order differential array, which can be robust against white noise amplification. This approach exploits the fact that the number of microphones can be much larger than the order of the CDMA. As a result, the more microphones, the more robust is the CDMA for a predetermined order.

Original languageEnglish
Title of host publicationSpringer Topics in Signal Processing
PublisherSpringer Science and Business Media B.V.
Pages113-142
Number of pages30
DOIs
StatePublished - 2015

Publication series

NameSpringer Topics in Signal Processing
Volume12
ISSN (Print)1866-2609
ISSN (Electronic)1866-2617

Keywords

  • Circular Array
  • Directivity Factor
  • Directivity Pattern
  • Microphone Array
  • White Noise

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