Multiple source localization with moving co-prime arrays

Conference Paper

In this paper, we explore the use of temporal signal coherence to increase the degrees of freedom in a non-uniform under-sampled linear moving array. In particular, we develop bounds on the minimum Temporal-Coherence-Period (TCP) required to synthetically fill-in missing inter-element sensors in a moving array system. In addition, we show how an existing technique that exploits properties of the sensor co-array can be used to overcome positive-definite deficiency in the spatial covariance matrix estimate derived from the synthetic sensor array. This type of synthetic aperture processing facilitates the localization of a number of far-field sources on the order of the number of half-wavelength sensor spacings over the array aperture, rather than on the number of sensors present in the sparse array.

Full Text

Duke Authors

Cited Authors

  • Ramirez, J; Krolik, J

Published Date

  • August 4, 2015

Published In

Volume / Issue

  • 2015-August /

Start / End Page

  • 2374 - 2378

International Standard Serial Number (ISSN)

  • 1520-6149

International Standard Book Number 13 (ISBN-13)

  • 9781467369978

Digital Object Identifier (DOI)

  • 10.1109/ICASSP.2015.7178396

Citation Source

  • Scopus