Symmetric sparse linear array for active imaging

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Sparse sensor arrays can achieve significantly more degrees of freedom than the number of elements by leveraging the co-array, a virtual structure that arises from the far field narrowband signal model. Although several sparse array configurations have been developed for passive sensing tasks, less attention has been paid to arrays suitable for active sensing. This paper presents a novel active sparse linear array, called the Interleaved Wichmann Array (IWA). The IWA only has a few closely spaced elements, which may make it more robust to mutual coupling effects. Closed-form expressions are provided for the key properties of the IWA. The parameters maximizing the array aperture for a given even number of elements are also found. The near field wideband performance of the array is demonstrated numerically in a coherent imaging scenario.

Original languageEnglish
Title of host publication2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop, SAM 2018
Place of PublicationUnited States
Number of pages5
ISBN (Print)9781538647523
Publication statusPublished - 27 Aug 2018
MoE publication typeA4 Conference publication
EventIEEE Sensor Array and Multichannel Signal Processing Workshop - Sheffield, United Kingdom
Duration: 8 Jul 201811 Jul 2018
Conference number: 10

Publication series

NameProceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop
ISSN (Print)1551-2282


WorkshopIEEE Sensor Array and Multichannel Signal Processing Workshop
Abbreviated titleSAM
Country/TerritoryUnited Kingdom


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