Wideband array processing with constant beam pattern beyond the spatial sampling limit

Alireza Shapoury, Erchin Serpedin

Research output: Contribution to journalArticle

Abstract

This paper first addresses the Direction of Arrival (DOA) ambiguity problem in Uniform Linear Arrays (ULAs) and then proposes a wideband implementation through narrowband operation for an aliased array. It is shown that by an appropriate design e.g., frequency band selection and separation, signal spectrum support, and multiples access, one can resolve the aliasing, while maintaining larger array element spacing. A frequency invariant beamformer is used to control a contact bandwidth among the frequency subbands. The algorithm takes an all-angle approach for DOA and transmitted data signal estimation. Finally, the stability of the methodology is justified and the collaborated by simulation results.

Original languageEnglish
Article number72971K
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume7297
DOIs
Publication statusPublished - 2009
Externally publishedYes

Fingerprint

Array processing
Direction of arrival
Direction of Arrival
sampling
Sampling
broadband
arrivals
Frequency bands
multiple access
Linear Array
Aliasing
Multiple Access
linear arrays
Bandwidth
ambiguity
Spacing
narrowband
Resolve
spacing
Contact

Keywords

  • Array antenna processing
  • Constant beamwidth transmission
  • Wideband communication

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

@article{d6b48787dee94d1abb763cf306a6ad1b,
title = "Wideband array processing with constant beam pattern beyond the spatial sampling limit",
abstract = "This paper first addresses the Direction of Arrival (DOA) ambiguity problem in Uniform Linear Arrays (ULAs) and then proposes a wideband implementation through narrowband operation for an aliased array. It is shown that by an appropriate design e.g., frequency band selection and separation, signal spectrum support, and multiples access, one can resolve the aliasing, while maintaining larger array element spacing. A frequency invariant beamformer is used to control a contact bandwidth among the frequency subbands. The algorithm takes an all-angle approach for DOA and transmitted data signal estimation. Finally, the stability of the methodology is justified and the collaborated by simulation results.",
keywords = "Array antenna processing, Constant beamwidth transmission, Wideband communication",
author = "Alireza Shapoury and Erchin Serpedin",
year = "2009",
doi = "10.1117/12.823668",
language = "English",
volume = "7297",
journal = "Proceedings of SPIE - The International Society for Optical Engineering",
issn = "0277-786X",
publisher = "SPIE",

}

TY - JOUR

T1 - Wideband array processing with constant beam pattern beyond the spatial sampling limit

AU - Shapoury, Alireza

AU - Serpedin, Erchin

PY - 2009

Y1 - 2009

N2 - This paper first addresses the Direction of Arrival (DOA) ambiguity problem in Uniform Linear Arrays (ULAs) and then proposes a wideband implementation through narrowband operation for an aliased array. It is shown that by an appropriate design e.g., frequency band selection and separation, signal spectrum support, and multiples access, one can resolve the aliasing, while maintaining larger array element spacing. A frequency invariant beamformer is used to control a contact bandwidth among the frequency subbands. The algorithm takes an all-angle approach for DOA and transmitted data signal estimation. Finally, the stability of the methodology is justified and the collaborated by simulation results.

AB - This paper first addresses the Direction of Arrival (DOA) ambiguity problem in Uniform Linear Arrays (ULAs) and then proposes a wideband implementation through narrowband operation for an aliased array. It is shown that by an appropriate design e.g., frequency band selection and separation, signal spectrum support, and multiples access, one can resolve the aliasing, while maintaining larger array element spacing. A frequency invariant beamformer is used to control a contact bandwidth among the frequency subbands. The algorithm takes an all-angle approach for DOA and transmitted data signal estimation. Finally, the stability of the methodology is justified and the collaborated by simulation results.

KW - Array antenna processing

KW - Constant beamwidth transmission

KW - Wideband communication

UR - http://www.scopus.com/inward/record.url?scp=62449177010&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=62449177010&partnerID=8YFLogxK

U2 - 10.1117/12.823668

DO - 10.1117/12.823668

M3 - Article

AN - SCOPUS:62449177010

VL - 7297

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

SN - 0277-786X

M1 - 72971K

ER -